1girl, alternate_costume, animal_ears, ass, backless_dress, backless_outfit, blue_eyes, chair, dress, from_behind, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, looking_back, night, orange_hair, outdoors, red_eyes, silence_suzuka_(umamusume), smile, solo, tail, umamusume, uu-tan_(hushigi10)