2girls, animal_ears, armpits, arms_up, bad_pixiv_id, beach, bikini, black_bikini, black_hair, blue_eyes, blue_sky, bob_cut, bow, breasts, brown_eyes, brown_hair, cloud, day, eishin_flash_(umamusume), hair_bow, halterneck, horizon, horse_ears, horse_girl, horse_tail, innertube, kurumi_lm, long_hair, looking_at_viewer, medium_breasts, multiple_girls, navel, o-ring, o-ring_top, ocean, one-piece_swimsuit, outdoors, pink_one-piece_swimsuit, scrunchie, short_hair, sky, smart_falcon_(umamusume), solo_focus, swept_bangs, swimsuit, tail, twintails, umamusume, white_scrunchie