AI Prompt Library

Ultra-realistic black-and-white cinematic portrait of a young woman with long flowing hair gently blown across her face, subtle nose ring, calm neutral expression, wearing a minimal black turtleneck. Soft natural daylight, shallow depth of field, blurred urban background, high contrast monochrome tones, fine skin texture, sharp facial focus, moody editorial fashion photography, 85mm lens look, film grain, timeless aesthetic.

{ "project_metadata": { "output_format": "RAW_Photography", "version": "3.0_High_Fidelity", "aspect_ratio": "3:4", "style_preset": "Cinematic_Portrait" }, "subject_definition": { "identity": { "biometrics": { "gender": "Female", "apparent_age": "20-25", "ethnicity_profile": "Northern European" }, "face_mapping": { "eyes": { "iris_color": "Crystal Blue", "expression": "Intense, direct" }, "skin": { "texture_type": "Hyper-detailed dermis", "imperfections": ["Freckles", "Cold-induced flushing"], "moisture_level": "Slightly damp from snow" }, "hair": { "base_color": "Blonde", "state": "Messy/Wind-swept", "interaction": "Tucked under goggle strap with wisps framing face" } } }, "styling_layers": { "layer_0_skin": "Natural pink lips, unadorned", "layer_1_base": { "item": "Knit Turtleneck", "color": "Tan", "texture": "Vertical ribbing" }, "layer_2_outer": { "item": "Parka/Coat", "accent": "Brown faux fur collar", "interaction": "Snow-dusted" }, "accessories": { "item": "Ski Goggles", "frame": "Tan Matte", "lens": "Brown Mirror Finish", "placement": "Forehead" } } }, "environment_simulation": { "geography": { "primary_location": "Alpine mountain slope", "background_elements": ["Snow-capped peaks", "Basalt rock outcrops"], "depth_mapping": "Extreme bokeh/background blur" }, "particle_effects": { "type": "Fresh powder snow", "placement": ["Fur collar fibers", "Hair strands", "Goggle edges"] }, "lighting_engine": { "source": "Overcast daylight", "diffusion": "High (soft shadows)", "color_temp": "6500k (Cool winter tones)", "highlights": "Reflective glints on snow crystals and goggles" } }, "optical_parameters": { "camera_specs": { "lens_type": "85mm Prime", "aperture": "f/1.8", "shot_distance": "Close-up (CU)", "focus_priority": "Iris of the eyes" }, "render_passes": [ "Subsurface scattering (skin)", "Micro-displacement (knit texture)", "Volumetric cold air haze", "Individual follicle rendering" ], "mood_profile": ["Serene", "Arctic", "Exploration", "High-Contrast"] } }

{ "image_generation_request": { "content": { "subject_details": { "identity": { "name": "{argument name="model name" default="England model"}", "gender": "female" }, "appearance": { "hair": { "color": "dark brown", "texture": "straight", "length": "long" }, "expression": "smiling gently", "makeup": { "style": "light", "lip_color": "rosy" } }, "action_and_pose": { "posture": "reclined sitting", "placement": "on grass", "gaze": "direct at camera", "arm_position": "hands behind back supporting body" }, "attire": { "outerwear": { "item": "cropped jacket", "material": "leather", "color": "black", "state": "buttoned open" }, "upper_body": { "item": "form-fitting top", "color": "black", "layer": "under jacket" }, "lower_body": { "item": "jeans", "material": "denim", "wash": "light blue", "fit": "high-waisted" } } }, "scene_details": { "environment": { "type": "park", "ground_surface": "green grass", "ground_elements": [ "scattered dry autumn leaves" ] }, "background_elements": [ "lush green trees", "tall hedge on the left", "black metal fence", "gravel path in the distance" ], "lighting_conditions": { "source": "natural daylight", "quality": [ "bright", "clear" ] } } }, "execution_parameters": { "photography_style": { "shot_type": "photograph", "aesthetic": [ "clean", "natural", "detailed" ], "composition": { "camera_angle": "eye-level", "framing": "well-structured" }, "focus_and_texture": { "focus": "sharp", "priority_textures": [ "hair", "leather", "denim", "grass" ] } }, "technical_specs": { "resolution": "4K Ultra HD", "aspect_ratio": "9:16" } } } }

Design a hyper-luxurious, Instagram-worthy hotel suite, meticulously crafted by a top professional. The room must seamlessly incorporate and elevate all foundational elements present in the provided reference photo. The exact subject from the photo must be explicitly present, doused in a vibrant, dripping, psychedelic paint treatment. The overall aesthetic is high-end Y2K maximalism, strictly utilizing the palette of pink, black chrome, lilac, and white. Integrate textural and atmospheric references to Claude Monet's Water Lilies painting, interpreting the soft light and blended colors through a shimmering, opulent, and slightly hallucinogenic lens. Render this strikingly photogenic and utterly aspirational space in a high-fidelity, photorealistic style.

{ "image_parameters": { "style": "Canon IXUS aesthetic", "type": "Point-and-shoot photography", "quality": "Hyper-realistic", "tone": "Sharp, direct", "lighting_and_atmosphere": "Realistic, flash-style/direct lighting" }, "subject": { "constraints": { "facial_identity": "Match reference image exactly 100%", "face_edits": "None allowed" }, "hair": { "style": "Long, natural, lightly messy layered look", "movement": "Blowing gently in the wind", "details": "Strands slightly covering part of face" }, "makeup": { "cheeks_and_nose": "Soft pink blush with blurred effect", "lips": "Subtle pink-orange tinted outline" }, "expression": [ "Cute", "Naive", "Cheerful", "Slightly sexy/undone charm" ], "pose": { "body_position": "Half-sitting, half-standing", "action": "Flicking hair" }, "clothing": { "top": "Black strapless top", "bottom": "Low-waisted jeans with a floating waistline", "neck": "Thin black fabric choker/wrap" }, "accessories": [ "Small pendant necklace", "Gold watch" ] }, "environment": { "setting": "Modern pub", "foreground_props": [ "Round table", "Bottle of liquor", "Glass of liquor" ] } }

Ultra-realistic luxury fashion editorial portrait of a young red-haired woman with fair freckled skin, natural facial asymmetry, authentic proportions, casting-model appearance, close-up three-quarter view, relaxed expression, gaze directed downward or off-camera. Contemporary editorial makeup featuring diffused metallic champagne-gold graphic eye makeup with organically imperfect edges. Freckles fully visible. Highly detailed skin texture with visible pores, tonal variation, subtle redness, and natural imperfections. Sleek wet-look or loosely pulled-back hair with realistic irregularities. Sculptural minimalist gold jewelry with natural reflections and imperfect highlights. Low-key cinematic lighting, strong contrast, single directional soft light source, deep shadows, dimensional facial contours, dark near-black background with subtle falloff. Cinematic color grading, slightly desaturated tones, warm undertones, rich blacks, soft highlight rolloff. Medium-format photography, 100mm lens, shallow depth of field, razor-sharp focus on skin texture, subtle lens imperfections, gentle highlight bloom, organically integrated fine film grain. Modern high-fashion editorial campaign aesthetic, sophisticated, bold, luxurious, understated, ultra-detailed, photorealistic, authentic photography. Negative prompt: CGI, 3D render, digital art, illustration, anime, cartoon, painting, overprocessed skin, beauty retouching, airbrushed skin, plastic skin, flawless skin, idealized beauty, glam makeup, commercial beauty advertising, symmetrical face, doll-like features, heavy skin smoothing, excessive sharpening, artificial lighting, flat lighting, evenly lit studio lighting, bright seamless backdrop, ornate jewelry, diamonds, silver jewelry, white eye makeup, exaggerated highlights, HDR look, oversaturated colors, excessive contrast, fake film grain overlay, waxy skin, blurry skin texture, low detail skin, distorted anatomy, deformed face, extra facial features, low resolution, artifacts, watermark, logo, signature, text.

{ "image_request": { "subject": { "description": "Elegant woman with a fair complexion and long, wavy black hair.", "features": { "makeup": "Bold red lipstick, subtle smoky eye shadow, defined eyebrows.", "expression": "Confident and sophisticated gaze towards a mirror.", "pose": "Mirror selfie pose, holding a modern smartphone." }, "attire": { "dress": "Luxury floor-length satin gown in deep ruby red with a plunging V-neckline.", "jewelry": "Delicate golden necklace and a matching gold bracelet on the wrist." } }, "environment": { "setting": "Opulent high-end master bedroom.", "furniture": [ "Ornate wooden vanity with vintage circular mirrors.", "Large king-sized bed with plush beige quilted bedding and decorative pillows.", "Classic wooden wardrobe in the background." ], "view": "Large window showing a blurred evening cityscape with glowing lights." }, "technical_details": { "lighting": "Warm indoor ambient lighting from a chandelier, soft rim lighting on the hair.", "composition": "Medium shot, eye-level, mirror reflection style.", "quality": "8k resolution, photorealistic, cinematic texture, high contrast.", "details": "High-fidelity skin texture, silk fabric reflections, clear image on the phone case back." } } }

A field of poppies with eyes in the center of each flower. The flowers are pink, red, and cream colored, and they are all facing the viewer. The background is a blur of more flowers and greenery. The overall mood is surreal and dreamlike.

Extremely minimal abstract visual. Single sculptural form, single soft light source, single color family, perfect negative space balance, realistic material shading, no decorative elements, gallery-level composition.

{ “subject”: { “description”: “A vertical, flash-lit photograph of a strikingly beautiful young woman with an exaggerated curvy build, posing on a sandy beach at night.”, “body”: { “physique”: “She possesses an incredibly exaggerated ‘slim-thick’ hourglass figure. Her waist is extremely tiny and snatched, transitioning dramatically into massively prominent, round, and wide glutes and thick, shapely thighs. The contrast is heavily emphasized by the pose and direct lighting.”, “pose”: “Standing on the dark sand near the water’s edge. She is twisted slightly, looking back over her right shoulder directly at the camera lens, replicating the previous pose. Her stance emphasizes the extreme curve of her lower back and glutes under the harsh light.”, “features”: “Platinum blonde hair tied back into a high ponytail. Her face is strikingly beautiful but realistic, illuminated sharply by the direct flash, showing natural skin texture and pores. No tattoos.” }, “wardrobe”: { “outfit”: “A highly modern, minimalist vibrant red string bikini designed with multiple thin straps. The top is a micro-triangle style with intricate strappy details, and the bottoms are ultra-high-cut and skimpy with multiple side strings, maximizing the exposure of her curves.” } }, “pose_action”: “Standing at the seaside at night, looking back over her shoulder, illuminated by a camera flash.”, “scene”: { “environment”: “A sandy beach at dead of night.”, “elements”: “She stands on dark, wet sand. Behind her is the dark ocean with subtle white foam from waves. The night sky is clear and dark, featuring a bright full moon and numerous visible stars.”, “composition”: “Vertical 9:16 aspect ratio. A medium-full shot capturing the subject from the knees up, dominated by the flash lighting against the dark night background.” }, “lighting”: { “setup”: “Harsh, direct, on-camera flash (like a bright smartphone flash) combined with ambient moonlight.”, “details”: “The direct flash creates a bright spotlight on the subject, making her skin and the red bikini pop with sharp highlights and creating distinct, hard shadows directly behind her on the sand. The background elements (moon, stars, water) are visible but much darker than the flash-lit subject. The flash reflects sharply off the wet sand and her skin.” }, “camera”: { “technical”: “Raw, candid-style photograph taken with a direct flash. Sharp focus on the subject. High contrast image with deep blacks in unlit areas and bright, somewhat harsh highlights on the subject, typical of direct flash photography. Grain is visible in the darker areas.”, “aspect_ratio”: “9:16”, “constraints”: [ “CRITICAL: The subject must have the specific EXAGGERATED hourglass physique.”, “CRITICAL: Lighting must be HARSH, DIRECT PHONE FLASH style at NIGHT.”, “CRITICAL: Background must include a FU

Full body cinematic shot of the person in the uploaded image as a hitman in a tailored black suit and tie standing in an empty studio space beside a muscular Doberman dog on a leash. The man has a bruised face with blood marks, messy shoulder-length hair, and a calm but intense expression. He is holding a pistol in one hand. Behind them is a vintage black muscle car with chrome rims partially visible in soft shadow. Minimalist grey background, dramatic studio lighting from above creating soft reflections on the glossy floor. Ultra realistic skin texture, cinematic depth of field, sharp focus, subtle fog in the background, moody atmosphere, 85mm lens look, volumetric light, film still from a neo-noir action movie, high dynamic range, photorealistic, 8k, symmetrical composition. 3:4 aspect ratio.

{ "scene": { "location": "modern indoor staircase", "materials": ["white marble stairs", "smooth light-colored walls"], "interior_style": "minimalist, modern luxury", "background_elements": [ "floating console table", "warm table lamp with soft glow", "clean architectural lines" ] }, "pose": { "body_position": "seated sideways on stairs", "orientation": "back facing camera, torso slightly twisted", "head_position": "head turned over shoulder, downward gaze", "posture": "relaxed yet elegant, subtly seductive" }, "outfit": { "dress_type": "long {argument name="dress color" default="black"} backless evening dress", "design": "open back with thin criss-cross straps", "details": [ "butterfly-shaped lace accents on back", "multiple thin strings creating geometric lines", "floor-length silhouette" ], "style_vibe": "elegant, sensual, minimal" }, "framing": { "shot_type": "full body", "camera_angle": "slightly elevated, behind and to the side", "composition": "subject centered on staircase lines", "aspect_ratio": "4:5" }, "lighting": { "type": "soft indoor lighting", "color_temperature": "warm-neutral", "highlights": "gentle highlights on skin and fabric", "shadows": "soft, natural shadows enhancing contours" }, "mood": { "atmosphere": "intimate, calm, luxurious", "emotion": "quiet confidence with subtle allure" }, "photography_style": { "realism": "editorial realism", "processing": "clean, natural tones, no overprocessing", "detail_level": "high fabric and skin texture clarity" }, "negative_prompt": [ "cropped body", "half body", "distorted anatomy", "extra limbs", "overexposed lighting", "harsh shadows", "low resolution", "cartoonish style", "exaggerated proportions" ] }

Generate an ultra-realistic street-fashion portrait of a young woman; A cyberpunk female assassin stands in the pouring rain, gripping a glowing katana; Create an ultra-cinematic, warm-toned beach scene at sunset with horses running along the edge of the water; Nighttime flash photo with Y2K aesthetic, red digital timestamp in corner.

{   "prompt_data": {     "subject": {       "demographics": "Young woman, fair complexion",       "hair": {         "color": "Vibrant copper red",         "style": "Long, voluminous, loose waves/curls",         "texture": "Thick, shiny",         "length": "Past shoulders, reaching mid-chest"       },       "face": {         "features": "Visible freckles on face and chest, defined eyebrows",         "makeup": "Bold matte red lipstick, mascara, subtle eyeliner",         "expression": "Looking upward and slightly to the side (eye roll or thoughtful expression), mouth slightly open, playful/candid demeanor"       }     },     "clothing": {       "type": "Mini dress",       "material": "Full sequin fabric",       "color_palette": ["Bright red", "White", "Green"],       "design_details": {         "base": "Red sequins",         "pattern": "White sequin stripes intersecting to mimic a ribbon",         "accent": "Large green sequin bow attached at the waist/intersection of the white stripes",         "fit": "Form-fitting, sleeveless/strapless (obscured by hair)"       }     },     "accessories": {       "jewelry": [         "Small silver pendant necklace (rectangular shape)",         "Thin black bracelet or watch on left wrist"       ]     },     "pose_and_framing": {       "shot_type": "Medium shot (thighs up)",       "stance": "Standing, slightly leaned back against a door frame",       "hands": "Arms relaxed by sides, hands resting near thighs"     },     "environment": {       "setting": "Indoor hallway or apartment entry",       "background_elements": [         "Dark gray/black flat door behind subject",         "Silver lever-style door handle visible on the left",         "Patterned dark curtain/tapestry with orange and white details on the far left edge",         "Dark doorway/hallway glimpse on the right side"       ],       "lighting": "Direct indoor lighting, possibly camera flash, creating sharp highlights on the sequins and hair"     },     "aesthetic_style": {       "vibe": "Holiday party, costume, candid snapshot, playful",       "visual_quality": "Sharp focus on subject, realistic texture rendering (skin, hair, sequins)"     }   } }

{   "subject": {     "identity_lock": "use the same face identity consistently, do not change facial structure, do not generate a different person",     "demographics": "Fictional young adult female, clearly 21–24 years old, adult (20+), single subject only.",     "hair": {       "color": "natural copper red",       "style": "long, softly wavy, natural casual parting",       "texture": "realistic fine strands, slightly tousled",       "movement": "resting over shoulders and flowing mostly toward the back"     },     "face": {       "identity_priority": "very high",       "shape": "soft oval face with gentle jawline",       "eyes": "light blue-grey almond-shaped eyes, same shape and spacing, direct gaze",       "nose": "soft straight bridge with a delicate tip",       "lips": "naturally full lips with muted rosy lipstick only",       "expression": "sweet gentle smile, relaxed and friendly",       "skin_details": "very fair porcelain skin with light freckles on nose and upper cheeks",       "micro_details": "natural pores, real skin texture, no smoothing",       "makeup": {         "style": "no makeup",         "lipstick": "only simple natural rosy lipstick"       }     },     "body_proportions": {       "build": "soft feminine build with natural curves",       "chest": "full bust, realistic size and gravity",       "waist_to_chest_ratio": "balanced, natural, not exaggerated",       "legs": "natural length, clearly visible and in focus",       "posture": "straight, neutral stance, shoulders relaxed"     }   },   "outfit": {     "upper_body": {       "blazer": "fitted grey blazer worn open",       "shirt": "white button-up shirt, top few buttons open"     },     "lower_body": {       "skirt": "very short pleated plaid skirt, tasteful, non-explicit"     },     "legwear": {       "socks": "white knee-high socks only",       "shoes": "black leather loafers"     }   },   "pose": {     "pose_type": "mirror selfie",     "mirror_distance": "standing very close to the mirror, approximately one arm length",     "camera_distance": "close framing, not far",     "framing_rule": "full body visible including shoes, but face and legs take visual priority",     "body_position": "standing straight, centered, facing the mirror directly",     "hand_position": "phone held slightly below eye level so face is fully visible",     "overall_vibe": "natural, confident, sweet"   },   "environment": {     "location": "stylish modern interior with a full-length mirror",     "background_elements": "potted plants, framed artwork, simple decorative objects",     "lighting": {       "type": "soft natural indoor light",       "priority": "face clarity and leg clarity",       "color_balance": "neutral"     }   },   "image_style": {     "realism": "photorealistic",     "focus": "sharp focus on face and legs",     "composition": "single image, one subject, one face",     "quality_rules": "no distance feeling, no wide shot"   },   "composit" }

{ "generation_parameters": { "aspect_ratio": "9:16", "model_version": "photorealistic_v6_or_equivalent", "resolution": "8k_UHD", "quality_preset": "ultra_high_fidelity" }, "prompt_structure": { "subject": { "type": "woman", "appearance": "fit physique, long dark wavy hair flowing over shoulders, beautiful side profile, defined jawline, light makeup", "pose": "standing still, looking towards left, hands clasped gently at waist level, three-quarter view", "focus": "sharp focus on subject" }, "attire": { "outfit": "{argument name="ski outfit" default="tight-fitting white thermal ski jumpsuit"}, sleek design, black vertical piping on sides and zipper line, high collar", "accessories": "white protective ski helmet, matte black ski goggles resting on top of the helmet" }, "environment": { "setting": "high altitude mountain peak, alpine ski resort", "time_of_day": "night", "foreground": "pristine white powder snow texture", "background": "panoramic view of snow-capped mountain ranges, valley below with illuminated ski runs (warm tungsten string lights), blurred bokeh effect on distant lights", "sky": "dark blue night sky, subtle stars" }, "lighting": { "type": "cinematic night lighting", "sources": "soft ambient moonlight on subject, contrasting warm glow from distant resort lights", "shadows": "soft directional shadows, high dynamic range (HDR)" }, "technical_specs": { "style": "ultra-realistic photography, fashion editorial style", "camera": "85mm lens, f/1.8 aperture for depth of field", "details": "highly detailed fabric texture, realistic skin texture, 8k resolution, UHD, masterpiece, raw photo" } }, "negative_prompt": [ "blurry", "low quality", "cartoon", "illustration", "distorted face", "bad anatomy", "helmet strap covering face", "daytime", "sunlight", "noisy", "grainy" ] }

Millennial digital camera style selfie, deliberate low-resolution feel (simulating 2000s 2-megapixel quality), covered with cool blue-purple filters, overexposed highlights and hard shadows caused by direct front flash, unique color shift and noise of CCD sensors, date watermark "{argument name="date" default="02/12/2025"}", grid line decoration, MySpace era social media texture, square 1:1 composition

{ "subject": { "identity": { "biometric_reference": "Woman A", "facial_features": "Heart-shaped symmetry, defined malar bones, and tapered jawline. Lips are naturally pressed together with a closed mouth, ensuring zero visibility of teeth.", "hair": "blonde ombre with voluminous soft waves. An oversized sky blue cable-knit ribbon bow (HEX #AED9E0) is positioned at the back of the head.", "skin": "Photorealistic pore-level texture with natural freckle distribution and subsurface scattering for realistic flesh tones (HEX #F5E1D2)." }, "body": { "posture": "Aesthetic seated 'mermaid' position on the carpet, leaning back gracefully on the arms with a slight torso twist toward the camera.", "grooming": "High-gloss white nail polish (HEX #FFFFFF) on all visible fingernails and ten anatomically distinct, fully separated toenails." } }, "wardrobe": { "apparel": "{argument name="dress color" default="Sky blue"} (HEX #AED9E0) long-sleeved cable-knit mini-cardigan dress with visible fiber micro-texture and nacreous buttons.", "accessories": "Single-strand pearl choker with realistic nacre luster and silver clasp.", "footwear": "none" }, "scene": { "environment": "9:16 vertical aspect ratio. Subject is seated on a high-pile beige textured carpet (HEX #D2B48C) in front of a soft-blue paneled wooden door (HEX #ADD8E6) with a satin finish. Background reveals a dimly lit hallway for depth perception.", "lighting": "Soft-box studio lighting with 45-degree key light placement to sculpt the body's silhouette.", "camera": "Full-frame digital sensor, 35mm f/1.8 lens, 8k UHD resolution with zero-noise floor." }, "technical_specifications": { "negative_constraints": [ "teeth", "open mouth", "footwear", "logos", "text", "watermarks", "extra limbs", "merged toes", "beautify smoothing", "reflection integrity rules" ] } }

Creative composite photograph, 9:16 vertical aspect ratio, clean minimalist white background, studio lighting, high detail, sharp focus. A real-life {argument name="everyday object" default="everyday object"} is physically placed and perfectly integrated as a key part of a hand-drawn black ink cartoon illustration. The drawing is simple, expressive line art with minimal shading, like a quick sketch on paper. The {argument name="object" default="object"} represents {argument name="clever element" default="hair, weapon, body part, clothing, etc."}, cleverly completing the visual pun or concept. The cartoon character interacts dynamically with the object in a humorous, meaningful, or surprising way. Photorealistic object + bold black line drawing style, perfect seamless blend between real object and illustration, clean negative space, artistic and witty concept, high quality product photography mixed with doodle art.

A Sgraffito Mechanical Blueprint of {argument name="GPU model" default="NVIDIA 4090 GPU"}

{argument name="subject" default="Cyclops"} with an {argument name="accessory" default="eye patch"}

A cinematic, ultra-realistic close-up portrait of a young woman with wet, tousled dark hair and luminous skin, staring directly into the camera with an intense, introspective expression. Glowing {argument name="projection color" default="cyan"} handwritten text and symbols are projected across her face, neck, and shoulders, resembling poetic phrases, equations, and abstract handwriting. The light reflections shimmer on her damp skin, creating a futuristic, cyber-poetry aesthetic. Dark,moody background with soft shadows, shallow depth of field, sharp focus on the eyes, high contrast lighting, teal and blue color palette, hyper-detailed skin texture, photorealistic, dramatic atmosphere, cyberpunk meets fine-art portrait photography, 8K quality, cinematic lighting

A stylish young woman with short pastel blue hair and red sunglasses stands confidently on the hood of a classic luxury vintage sedan partially submerged in crystal clear shallow ocean water. She wears an oversized colorful striped polo shirt tucked into loose baggy denim jeans with a red scarf tied around the waist, layered silver chains, and casual sneakers. One hand rests in her pocket while the other makes a playful gesture toward the camera. A designer handbag sits beside her on the car hood. The scene is set in a bright sunny coastal landscape with rocky islands and turquoise water in the background, cinematic fashion editorial style, vibrant colors, ultra realistic, high detail, wide angle composition, summer luxury vibe.

Aries March 20th, slightly early The word is "{argument name="element" default="Fire"}" Something related to Mars... Marusu is also acceptable