1girl, ahoge, alternate_costume, animal_ears, black_one-piece_swimsuit, breasts, character_name, closed_mouth, competition_swimsuit, grey_eyes, grey_hair, holding_leg, horse_ears, horse_girl, horse_tail, looking_at_viewer, medium_breasts, oguri_cap_(umamusume), one-piece_swimsuit, shigino_sohuzi, simple_background, solo, split, spread_legs, standing, standing_on_one_leg, standing_split, swimsuit, tail, umamusume, white_background