1girl, =3, animal_ears, bandeau, bare_arms, bare_shoulders, bikini, blue_eyes, blush, breasts, brown_hair, cleavage, clenched_hands, closed_mouth, grass_wonder_(umamusume), groin, hands_up, horse_ears, horse_girl, horse_tail, kurumiyasan_ns, long_hair, looking_at_viewer, navel, simple_background, small_breasts, solo, swimsuit, tail, umamusume, underboob, white_background, white_bikini