{ "scene_type": "户外人像", "composition": { "framing": "中景", "orientation": "竖构图", "subject_position": "居于画面中右侧", "pose": "双臂交叉，身体微向右转，头部微向左转", "camera_angle": "平视视角", "depth_of_field": "浅景深，强烈的背景虚化 (bokeh)" } }