1girl, alternate_costume, animal_ears, artist_name, beach, bikini, black_bikini, breasts, brown_hair, cleavage, closed_mouth, hand_on_own_head, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, medium_breasts, mukakin, multicolored_hair, red_eyes, sirius_symboli_(umamusume), solo, streaked_hair, swimsuit, tail, towel, umamusume, umbrella, umbrella_stand