Portrait de salle de sport cinématique avec contrainte d'identité

```json
{
  "task": "image_generation",
  "style": {
    "resolution": "8K",
    "look": "hyperréaliste, cinématographique",
    "photorealism": true
  },
  "subject": {
    "identity": "mannequin de fitness fictif",
    "inspiration": "inspiré d'une célébrité (non-identique, pas de correspondance faciale)",
    "gender": "femme",
    "skin_tone": "claire",
    "pose": {
      "view": "3/4 arrière",
      "posture": "dos cambré",
      "head_direction": "regard par-dessus l'épaule"
    },
    "expression": "sérieuse",
    "makeup": {
      "eyeliner": "ailé",
      "finish": "cinématique naturelle"
    },
    "hair": {
      "color": "châtain miel",
      "style": "chignon",
      "accessory": "pince à cheveux"
    }
  },
  "wardrobe": {
    "top": {
      "type": "brassière de sport",
      "color": "grise",
      "design": "multi-brides"
    },
    "bottom": {
      "type": "short",
      "fit": "serré, taille haute",
      "texture": "côtelé",
      "color": "marron"
    },
    "socks": {
      "type": "cuissardes",
      "color": "noires",
      "details": "rayures rouges"
    }
  },
  "environment": {
    "location": "salle de sport",
    "background_elements": [
      "rack métallique rouge"
    ],
    "atmosphere": "cinématique, d'ambiance"
  },
  "camera": {
    "lens": "85mm",
    "depth_of_field": "faible",
    "focus": "net sur le sujet"
  },
  "lighting": {
    "type": "cinématique",
    "key": "directionnelle douce",
    "contrast": "élevé",
    "highlights": "contrôlés"
  },
  "detail": {
    "skin": "ultra-détaillée, texture réaliste",
    "fabric": "micro-détails élevés"
  },
  "composition": {
    "aspect_ratio": "3:4",
    "framing": "portrait"
  },
  "constraints": {
    "no_real_person_identity": true,
    "no_face_matching": true
  }
}
```