1girl, alternate_costume, animal_ears, ashitaba_tomorou, bikini, blush, breasts, cleavage, collarbone, copano_rickey_(umamusume), double_bun, fang, hair_between_eyes, hair_bun, hair_ornament, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, medium_breasts, navel, open_mouth, outdoors, red_eyes, swimsuit, tail, umamusume, wet