Pilates Studio (soft daylight, athletic elegance)

{  "category": "PILATES_STUDIO_SOFT_DAYLIGHT",  "identity_lock": {    "enabled": true,    "priority": "ABSOLUTE_MAX",    "instruction": "Preserve exact reference identity and facial proportions. Adult 21+ only."  },  "subject": {    "demographics": "Adult woman, 21-29, match reference identity.",    "hair": {      "color": "Match reference.",      "style": "High ponytail or neat bun (realistic, not perfect)",      "texture": "Strands visible, a few flyaways",      "movement": "Minimal"    },    "face": {      "eyes": "Exact reference eyes; calm focus",      "skin_details": "Natural texture; subtle workout glow (not oily)",      "micro_details": "Preserve marks"    },    "clothing": {      "outfit": "Minimal activewear set (no logos/text)",      "fabric": "Athletic knit texture visible; realistic tension at seams"    },    "accessories": {      "jewelry": [        "Small silver hoops optional (can be removed for workout realism)"      ]    }  },  "pose": {    "type": "Post-session candid",    "orientation": "Half-body seated on mat",    "hands": "One hand holding water bottle (unbranded), other resting on knee",    "gaze": "Near-direct eye contact",    "expression": "Soft proud smile"  },  "setting": {    "environment": "Pilates studio",    "background_elements": [      "Neutral studio walls",      "Mirrors blurred without reflections glitches",      "Yoga mats and props (no logos)"    ],    "depth": "Subject sharp; background soft"  },  "camera": {    "shot_type": "Half-body portrait",    "angle": "Eye level or slightly above",    "focal_length_equivalent": "26mm phone OR 50mm pro",    "framing": "4:5",    "focus": "Eyes sharp; background bokeh"  },  "lighting": {    "source": "Soft window daylight",    "direction": "Gentle side/front",    "highlights": "Natural highlights on cheekbones",    "shadows": "Soft, flattering"  },  "mood_and_expression": {    "tone": "Clean, sporty, calm confidence",    "atmosphere": "Minimal, airy"  },  "style_and_realism": {    "style": "Photoreal fitness lifestyle",    "imperfections": "Mild noise, subtle sweat glow"  },  "technical_details": {    "aspect_ratio": "4:5",    "resolution": "High",    "noise": "Low to mild",    "mode_variants": {      "amateur": "Phone candid framing, mild noise, slight tilt",      "pro": "Editorial fitness look, crisp micro-contrast, clean exposure"    }  },  "constraints": {    "adult_only": true,    "single_subject_only": true,    "no_text": true,    "no_logos": true,    "no_watermarks": true  },  "negative_prompt": [    "identity drift",    "face morphing",    "mirror glitches",    "duplicate reflections",    "extra fingers",    "bad anatomy",    "readable text",    "logos",    "watermark",    "plastic skin",    "over-smoothing"  ]}