1girl, alternate_costume, animal_ears, armpits, arms_behind_head, arms_up, banned_artist, blue_one-piece_swimsuit, blush, breasts, brown_hair, cleavage, closed_mouth, competition_school_swimsuit, cowboy_shot, green_eyes, hair_between_eyes, horse_ears, horse_girl, horse_tail, huziko32, large_breasts, long_hair, looking_at_viewer, maruzensky_(umamusume), one-piece_swimsuit, partially_submerged, pink_lips, school_swimsuit, sideboob, sidelocks, smile, solo, standing, swimsuit, tail, umamusume, very_long_hair, wet, wet_clothes, wet_hair, wet_swimsuit