现代健身房中的年轻女性

The irreplaceable aspect of nano banana to this day is the incredibly realistic photos it produces.
{
 "subject": {
 "description": "A very youthful-looking young adult woman in a modern gym, athletic and visibly stronger upper body, wearing a deep red long-sleeve cutout athletic top styled to expose the midriff and navel, and high-waisted dark gray shorts with red flame patterns, standing in a three-quarter pose and looking off to the left.",
 "mirror_rules": null,
 "age": "young adult",
 "expression": {
 "eyes": {
 "look": "bright, clear, youthful gaze",
 "energy": "calm and confident",
 "direction": "looking to the left, off-camera"
 },
 "mouth": {
 "position": "closed, gently relaxed",
 "energy": "neutral-soft"
 },
 "overall": "serene, youthful confidence"
 },
 "face": {
 "preserve_original": true,
 "makeup": "minimal natural makeup, fresh skin finish, subtle cheek highlight, clean brows"
 }
 },
 "hair": {
 "color": "light blonde with subtle natural highlights",
 "style": "low messy bun with a center part and a few loose face-framing strands",
 "effect": "soft wispy flyaways, clean airy texture"
 },
 "body": {
 "frame": "athletic and toned",
 "waist": "defined",
 "chest": "athletic",
 "legs": "toned",
 "skin": {
 "visible_areas": [
 "face",
 "neck",
 "midriff",
 "navel",
 "thighs",
 "hands"
 ],
 "tone": "fair, cool-neutral, evenly matched across face, torso, and legs",
 "texture": "smooth and even, fine natural texture, reduced redness on thighs and knees, no blotchiness",
 "lighting_effect": "soft glow with gentle highlight, even illumination on legs, no orange cast"
 },
 "lighting_effect_details": "subtle definition on shoulders, upper arms, and abdomen from controlled soft light",
 "muscle_definition": "visible but natural upper-body definition: rounded deltoids, toned biceps/triceps, subtle upper chest contour, light abdominal definition with faint oblique lines"
 },
 "pose": {
 "position": "standing, three-quarter view",
 "base": "weight shifted onto one leg, hip slightly popped",
 "overall": "subtle torso twist; one hand lifting or holding the hem/upper fabric of the top to reveal the abdomen and navel"
 },
 "clothing": {
 "top": {
 "type": "deep red fitted long-sleeve athletic top with a wide oval chest cutout and center ruching, styled as a crop or lifted to expose the midriff",
 "color": "deep red",
 "details": "prominent curved chest cutout; visible center ruching; fabric folds if lifted; tight performance fabric",
 "effect": "sleek stretchy fabric, tight fit"
 },
 "bottom": {
 "type": "high-waisted tight athletic shorts",
 "color": "dark gray",
 "details": "red flame-like abstract pattern; clean waistband; fitted hem",
 "effect": "matte stretchy fabric, snug fit"
 }
 },
 "accessories": {
 "headwear": null,
 "jewelry": "thin chain necklace with a small pendant; simple rings",
 "device": "black thigh strap with a round module on the outer upper thigh",
 "prop": null
 },
 "photography": {
 "camera_style": "realistic social-media fitness portrait, clean editorial look",
 "angle": "eye-level to slightly low angle, flattering perspective",
 "shot_type": "mid-thigh to head portrait",
 "aspect_ratio": "9:16",
 "texture": "high-resolution, sharp subject, smooth bokeh, clean skin rendering",
 "lighting": "soft diffused indoor lighting with gentle directional shaping to reveal muscle definition without harsh shadows",
 "depth_of_field": "shallow depth of field, creamy background blur"
 },
 "background": {
 "setting": "modern gym interior",
 "wall_color": "light neutral tones",
 "elements": [
 "blurred gym machines",
 "wood ceiling beams",
 "metal ducting/pipes",
 "round ceiling lights"
 ],
 "atmosphere": "clean, bright, airy",
 "lighting": "soft overhead ambience with controlled highlights"
 },
 "the_vibe": {
 "energy": "quiet strength",
 "mood": "calm, confident, youthful",
 "aesthetic": "realistic athletic editorial",
 "authenticity": "candid but polished gym moment",
 "intimacy": "mid-close framing with strong subject separation",
 "story": "a pause between sets, showing strength and physique details",
 "caption_energy": "minimal, cool, self-assured"
 },
 "constraints": {
 "must_keep": [
 "visible midriff and navel (belly exposed)",
 "natural upper-body muscle definition (deltoids, arms, subtle abs/obliques)",
 "even fair cool-neutral skin across face, torso, and legs; legs noticeably fairer with reduced redness",
 "light blonde low messy bun with center part and wispy strands",
 "deep red long-sleeve top with wide oval chest cutout and center ruching",
 "high-waisted dark gray shorts with red flame pattern",
 "black thigh strap with round module on outer upper thigh",
 "gym background with wood ceiling and metal ducts, blurred machines",
 "9:16 vertical, mid-thigh to head, shallow depth of field"
 ],
 "avoid": [
 "covered belly or hidden navel",
 "exaggerated bodybuilder muscles",
 "excessive vascularity",
 "harsh shadows that age the face",
 "orange/yellow skin color cast",
 "tanned legs or uneven leg tone",
 "blotchy skin or red knees",
 "text, watermark, big logos"
 ]
 },
 "negative_prompt": [
 "no navel",
 "covered belly",
 "exaggerated muscles",
 "bodybuilder",
 "excessive vascularity",
 "harsh flash",
 "harsh shadows",
 "orange cast",
 "tanned legs",
 "uneven skin tone",
 "red knees",
 "blotchy skin",
 "wrinkles",
 "mature",
 "bad anatomy",
 "extra fingers",
 "text",
 "watermark",
 "logo",
 "cartoon",
 "anime",
 "uncanny"
 ]
}