手持博美犬的女性写实肖像（iPhone 风格）

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{   "subject": {     "character": "uploaded_photo",     "face_consistency": true,     "body_consistency": true,     "gender": "女性",     "age_appearance": "年轻成年人，20岁出头",     "ethnicity": "北欧",     "emotion": "温暖、放松的自信、友好的亲密感、休闲优雅",      "hair": {       "color": "浅铂金金色",       "length": "长发，及肩以下",       "style": "直发，带有非常轻微的自然波浪",       "texture": "细软、柔和、具有反光感",       "placement": "中分，均匀垂落在双肩"     },      "face": {       "visibility": "完全可见",       "profile_visibility": "正面，略带三分之四转角",       "skin_tone": "非常白皙，瓷白肤色",       "expression": "温柔的闭口微笑，放松的脸颊，柔和的眼神"     }   },    "meta": {     "aspect_ratio": "3:4",     "camera": "iPhone 15 Pro 后置摄像头",     "lens": "24mm 智能手机等效",     "aperture": "f/1.78",     "focal_character": "自然透视，略带广角感但无畸变",     "quality": "超写实",     "style": "Instagram 夜间人像，休闲生活方式真实感，柔和闪光灯照明，细微颗粒感"   },    "camera_angle": {     "vertical_position": "相机位置约在主体眼平线以上 10 度",     "horizontal_alignment": "相机居中对准主体躯干",     "tilt": "向下倾斜 -5 度",     "yaw": "相机正对主体",     "roll": "0 度，地平线水平",     "distance_to_subject_meters": 2.2,     "handheld_behavior": "稳定手持，微小抖动极少"   },    "body_angle": {     "global_orientation": "主体侧坐在户外沙发上",     "torso_rotation_degrees": 18,     "shoulder_alignment": "略微朝向相机倾斜",     "hip_rotation_degrees": 20,     "weight_distribution": "重量均匀地落在沙发坐垫上",     "posture": "挺直的躯干，肩膀放松"   },    "head_angle": {     "rotation_degrees": 10,     "tilt": "略微向相机右侧倾斜",     "chin_position": "中性",     "neck_tension": "放松"   },    "pose": {     "legs": {       "position": "双腿膝盖弯曲，向相机右侧斜放",       "knee_angle_degrees": 95,       "feet_position": "双脚平放在地面上，平行，脚尖朝前"     },     "arms": {       "right_arm": "手肘弯曲，从下方托住狗",       "left_arm": "手肘弯曲，轻轻将狗抱在躯干前",       "elbow_angle_degrees": 80     },     "hands": {       "grip": "对狗的温柔支撑性搂抱",       "finger_tension": "放松"     }   },    "secondary_subject": {     "type": "狗",     "breed": "博美犬",     "size": "小型",     "fur_color": "金棕色",     "fur_texture": "非常蓬松、浓密、打理得很好",     "position": "端坐在主体膝上",     "orientation": "面向相机",     ""   } }