1girl, animal_ears, bare_shoulders, blush, breasts, brown_hair, cleavage, collar, detached_sleeves, horse_ears, horse_girl, horse_tail, low_twintails, medium_breasts, multicolored_hair, rukinya_(nyanko_mogumogu), smile, solo, tail, twintails, umamusume, white_background, yamanin_zephyr_(umamusume), yellow_eyes