{"subject": {"description": "A young adult athletic model with pronounced muscular arms and defined abs, wearing gym streetwear, standing against a plain dark gray wall in a realistic social media photo.", "age": "early 20s", "expression": {"eyes": {"look": "calm, focused", "energy": "cool and controlled", "direction": "toward the camera, slightly downward"}, "mouth": {"position": "closed, slight pout", "energy": "neutral, restrained"}, "overall": "quiet confidence, post-workout calm"}, "face": {"preserve_original": true, "makeup": "minimal or no-makeup look, natural skin"}, "hair": {"color": "light blonde", "style": "tied back in a low ponytail with a few loose front strands under the cap", "effect": "slightly messy gym hair, natural texture"}, "body": {"frame": "lean, strong, visibly muscular upper body", "waist": "tight waist with sharp oblique lines", "chest": "athletic, supported by a tight crop top", "legs": "mostly covered by loose sweatpants", "skin": {"visible_areas": ["face", "neck", "shoulders", "arms", "midriff"], "tone": "fair to light", "texture": "smooth with subtle natural pores, slight workout sheen", "lighting_effect": "soft highlights on shoulders, arms, and abs"}}, "pose": {"position": "center frame", "base": "standing with a slight hip pop and gentle twist, arms relaxed with one arm slightly behind the body", "overall": "subtle S-curve posture emphasizing shoulders and abs"}, "clothing": {"top": {"type": "black sleeveless fitted crop athletic top", "color": "matte black", "details": "tight fit, high neckline, exposes midriff", "effect": "sculpts the and highlights muscle definition"}, "bottom": {"type": "baggy dark sweatpants", "color": "black or very dark navy", "details": "loose fit, elastic waist, white drawstring", "effect": "street-gym silhouette with contrast drawstring"}}}, "accessories": {"headwear": "black baseball cap with curved brim", "jewelry": "thin gold chain necklace with a small pendant", "device": "large black over-ear headphones", "prop": "black training glove or wrist wrap on one hand"}, "photography": {"camera_style": "realistic smartphone social media photo, gym portrait vibe", "angle": "slightly low angle, straight-on framing", "shot_type": "three-quarter body portrait (head to below hips), subject fills most of the vertical frame", "aspect_ratio": "9:16", "texture": "sharp but natural, mild noise, realistic skin and fabric texture", "lighting": "soft indoor overhead lighting with gentle shadows, no harsh specular highlights", "depth_of_field": "moderate depth of field, subject crisp, background smooth and unobtrusive"}, "background": {"setting": "minimal indoor wall backdrop, gym changing area feel fixtures", "wall_color": "dark gray", "elements": ["clean seamless wall", "subtle gradient shadow behind the subject"], "atmosphere": "quiet, minimal, focused", "lighting": "even indoor light with a soft top-lit gradient"}, "the_vibe": {"energy": "disciplined and strong", "mood": "cool, composed, slightly intense", "aesthetic": "minimal gym realism, modern street-athletic", "authenticity": "unedited social snapshot feel, true-to-life proportions and texture", "intimacy": "close personal moment after training, private confidence", "story": "a quick pause between sets, capturing the body’s effort and control", "caption_energy": "short, blunt, confident"}, "constraints": {"must_keep": ["pronounced muscular arms and defined abs", "black baseball cap", "black over-ear headphones", "black sleeveless crop athletic top", "baggy dark sweatpants with a white drawstring", "plain dark gray wall background", "soft indoor overhead lighting", "realistic smartphone photo look"], "avoid": [" logos or brand text", "busy background details", "extra people", "cartoon/anime styling", "heavy beauty retouching", "exaggerated body proportions", "watermarks or UI text"]}, "negative_prompt": ["anime", "cartoon", "cgi", "over-smoothed skin", "heavy makeup", "beauty filter", "exaggerated curves", "extra limbs", "bad anatomy", "blurry", "low resolution", "harsh flash", "busy background", "logos", "text", "watermark"]}