1girl, animal_ears, arm_up, artist_name, bare_shoulders, bikini, bikini_under_clothes, blue_background, blush, breasts, brown_bikini, brown_eyes, brown_hair, cleavage, closed_mouth, collarbone, cowboy_shot, dated, denim, ear_covers, groin, horse_ears, horse_girl, horse_tail, jeans, leaning_forward, looking_at_viewer, medium_hair, multicolored_hair, navel, nice_nature_(umamusume), no_shirt, pants, retsumaru, shading_eyes, simple_background, small_breasts, solo, streaked_hair, swimsuit, tail, twintails, umamusume