1girl, animal_ears, aqua_shorts, between_legs, chibi, closed_eyes, cotton_swab, ear_covers, grey_hair, hair_ornament, hairclip, horse_ears, horse_girl, horse_tail, mutugimio, poking, seiun_sky_(umamusume), shirt, short_hair, shorts, simple_background, single_ear_cover, sleeping, solo, tail, tail_between_legs, umamusume, white_background, yellow_shirt