1girl, animal_ears, bad_pixiv_id, bikini, black_bikini, blue_sky, breasts, cleavage, clenched_hand, cloud, cowboy_shot, day, ear_ornament, horizon, horse_ears, horse_girl, horse_tail, kitasan_black_(umamusume), large_breasts, looking_at_viewer, multicolored_hair, ocean, osashimisan, outdoors, red_eyes, see-through, see-through_shirt, side-tie_bikini_bottom, simple_background, sky, solo, streaked_hair, swimsuit, tail, umamusume