Hyper-realistic Gym Portrait of a Shy Girl

A highly structured JSON prompt for Nano Banana Pro to generate a hyper-realistic, cinematic portrait of a fictional fitness model in a gym setting. The prompt specifies detailed wardrobe (grey sports bra, ribbed brown shorts), pose (sitting on a fitness chair, V sign), lighting (cinematic, high contrast), and texture details (realistic skin and fabric), while explicitly constraining the output to avoid real person identity matching.

{
  "task": "画像生成",
  "style": {
    "resolution": "8K",
    "look": "ハイパーリアリスティック、シネマティック",
    "photorealism": true
  },
  "subject": {
    "identity": "フィクションのフィットネスモデル",
    "inspiration": "顔を変更せずに使用",
    "gender": "女性",
    "skin_tone": "白皙",
    "pose": {
      "フィットネスチェアに座り、カメラの方に向かって幸せに笑い、Vサインのハンドジェスチャーをしています"
    },
    "expression": "真剣",
    "makeup": {
      "eyeliner": "ウェッジ",
      "finish": "自然シネマティック"
    },
    "hair": {
      "color": "{argument name="hair color" default="honey-brown"}",
      "style": " bun",
      "accessory": "ヘアクリップ"
    }
  },
  "wardrobe": {
    "top": {
      "type": "スポーツブラ",
      "color": "{argument name="top color" default="grey"}",
      "design": "マルチストラップ"
    },
    "bottom": {
      "type": "ショートパンツ",
      "fit": "タイト、ハイウエスト",
      "texture": "リブ",
      "color": "茶色"
    },
    "socks": {
      "type": " thigh-high",
      "color": "黒",
      "details": "赤いストライプ"
    }
  },
  "environment": {
    "location": "ジム",
    "background_elements": [
      "赤い金属ラック"
    ],
    "atmosphere": "シネマティック、ムーディー"
  },
  "camera": {
    "lens": "85mm",
    "depth_of_field": "浅い",
    "focus": "被写体にシャープ"
  },
  "lighting": {
    "type": "シネマティック",
    "key": "柔らかい指向性",
    "contrast": "高",
    "highlights": "制御"
  },
  "detail": {
    "skin": "超高 detail、現実的な質感",
    "fabric": "高マイクロ detail"
  },
  "composition": {
    "aspect_ratio": "3:4",
    "framing": "ポートレート"
  },
  "constraints": {
    "no_real_person_identity": true,
    "no_face_matching": true
  }
}

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