1girl, d, animal_ears, armpits, beach, blue_one-piece_swimsuit, blue_sky, breasts, brown_hair, cloud, cloudy_sky, daiwa_scarlet_(umamusume), hair_intakes, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, one-piece_swimsuit, open_mouth, outdoors, pink_eyes, sand, school_uniform, sky, smile, solo, swimsuit, tail, tiara, tracen_swimsuit, twintails, umamusume, uousa-ou, very_long_hair, water, wet