1girl absurdres backless_dress backless_outfit bare_legs bird black_hair blue_sky cai_lin_(doupo_cangqiong) closed_mouth collar doupo_cangqiong dress falling_petals highres jewelry long_hair looking_at_viewer metal_collar outdoors petals pillar pointy_ears red_dress red_eyeliner second-party_source sky solo yin_shi_zhihua