{ "composition": { "framing": "半身肖像，从大腿上部到头部", "orientation": "竖构图", "camera_angle": "平视视角", "subject_position": "位于画面左三分之一处", "balance": "主体与右侧广阔的海景形成平衡", "depth": "中等景深，前景清晰" }