1girl, animal_ears, blue_eyes, blue_one-piece_swimsuit, blue_sky, breasts, cloud, competition_school_swimsuit, cowboy_shot, day, ear_covers, grey_hair, horse_ears, horse_girl, horse_tail, medium_breasts, one-piece_swimsuit, outdoors, school_swimsuit, seiun_sky_(umamusume), short_hair, single_ear_cover, sky, solo, splashing, swimsuit, tail, tracen_swimsuit, umamusume, umbrella, uu-tan_(hushigi10), water