游艇甲板上的高对比度比基尼姿势

```json
{
  "subject_description": {
    "demographics": "女性主体，晒黑的肤色，深棕色头发",
    "hair_state": "湿润/潮湿质感，松散波浪，深色光泽，中分，垂落在肩膀和背部",
    "facial_features": "浓妆，哑光淡紫色嘴唇，眉毛清晰，腮红明显，与相机直接眼神接触",
    "accessories": "大银色圈形耳环，左手腕戴银色手镯，左手戴银色戒指",
    "attire": "{argument name=\"bikini color\" default=\"Yellow\"} 两件式比基尼，带有黑色抽象图案/标志印花，黑色滚边/饰边，细系带"
  },
  "pose_geometry": {
    "primary_stance": "在甲板上跪坐（正坐式），重心落在脚跟和小腿上",
    "torso_rotation": "躯干向左极度扭转（约 160 度），面向后方对着相机",
    "spine_state": "明显的腰椎前凸（骨盆前倾），胸椎伸展，脊柱沟可见",
    "neck_head": "头部越过左肩旋转，下巴略微内收，眼睛向上/向前凝视镜头",
    "arms": {
      "left_arm": "笔直向下伸展，肘部锁定，承重，手掌平放在甲板表面，手指张开",
      "right_arm": "被躯干扭转遮挡，肩膀远离相机下垂"
    },
    "legs": {
      "hips": "与甲板表面平行，臀部重重地压在脚跟上",
      "knees": "完全弯曲，收拢在身体下方",
      "feet": "跖屈，脚底可见，脚跟被臀部重量压实"
    }
  },
  "anatomical_constraints": {
    "weight_distribution": "臀部重重地向下压在脚跟上，左手腕承受着重量",
    "surface_contact": "小腿和膝盖完全接触甲板，左手掌压在木头上，臀部压迫大腿",
    "soft_tissue_behavior": "因扭转导致腰部皮肤自然褶皱，大腿肉压迫小腿，下背部曲线因重力下垂"
  },
  "camera_configuration": {
    "angle": "高角度（相对于主体视线向下倾斜约 30-45 度）",
    "proximity": "近距离（约 1.5 米）",
    "focal_length": "广角（估计 28 毫米-35 毫米），对靠近镜头的下半身造成轻微的透视变形/放大",
    "framing": "主体水平居中，裁剪到膝盖处，头部上方包括天空和栏杆"
  },
  "environment_context": {
    "location": "船/游艇甲板",
    "flooring": "柚木板，带有黑色填缝线，湿润/光泽斑块",
    "background_elements": "镀铬安全栏杆（中景），深蓝色海水（波涛汹涌），远处绿色海岸线/山丘，晴朗的蓝天",
    "perspective_lines": "甲板木板从左下角向右上角对角延伸"
  },
  "lighting_and_color": {
    "source": "正午直射自然阳光",
    "quality": "强烈，高对比度，未漫射",
    "shadows": "硬边"
  }
}
```

---

**Original English:**
{
  "subject_description": {
    "demographics": "Female subject, tanned skin tone, dark brown hair",
    "hair_state": "Wet/damp texture, loose waves, dark glossy finish, parted in middle, falling over shoulders and back",
    "facial_features": "Heavy makeup application, matte mauve lips, defined eyebrows, visible blush, direct eye contact with camera",
    "accessories": "Large silver hoop earrings, silver bangle bracelets on left wrist, silver ring on left hand",
    "attire": "{argument name="bikini color" default="Yellow"} two-piece bikini with black abstract pattern/logo print, black piping/trim, thin tie strings"
  },
  "pose_geometry": {
    "primary_stance": "Kneeling (seiza-style) on deck, weight settled on heels and shins",
    "torso_rotation": "Extreme spinal twist (approx 160 degrees) to the left to face backward towards camera",
    "spine_state": "pronounced lumbar lordosis (anterior pelvic tilt), thoracic extension, visible spinal groove",
    "neck_head": "Head rotated over left shoulder, chin slightly tucked, eyes gazing upward/forward at lens",
    "arms": {
      "left_arm": "Extended straight down, locked elbow, weight-bearing, hand planted flat on deck surface, fingers splayed",
      "right_arm": "Obscured by torso rotation, shoulder dropped away from camera"
    },
    "legs": {
      "hips": "Square to deck surface, glutes resting heavily on heels",
      "knees": "Bent fully, tucked underneath body",
      "feet": "Plantarflexed, soles of feet visible, heels compressed by gluteal weight"
    }
  },
  "anatomical_constraints": {
    "weight_distribution": "Heavy downward compression of buttocks onto heels, load-bearing tension in left wrist",
    "surface_contact": "Full shin and knee contact with deck, palm of left hand pressing into wood, glutes compressing thighs",
    "soft_tissue_behavior": "Natural skin folding at waist due to twist, compression of thigh flesh against calves, gravitational sag of lower back curve"
  },
  "camera_configuration": {
    "angle": "High angle (approx 30-45 degrees downward tilt relative to subject eye line)",
    "proximity": "Close range (approx 1.5 meters)",
    "focal_length": "Wide angle (28mm-35mm estimate), creating slight perspective distortion/enlargement of lower body closer to lens",
    "framing": "Subject centered horizontally, crop cuts off at knees, headroom includes sky and railing"
  },
  "environment_context": {
    "location": "Boat/yacht deck",
    "flooring": "Teak wood planks with black caulking lines, wet/glossy patches",
    "background_elements": "Chrome safety railing (middle ground), deep blue ocean water (choppy texture), distant green coastline/hills, clear blue sky",
    "perspective_lines": "Deck planks running diagonally from bottom left to top right"
  },
  "lighting_and_color": {
    "source": "Direct high-noon natural sunlight",
    "quality": "Harsh, high contrast, non-diffused",
    "shadows": "Hard-edg"
  }
}