1girl, animal_ears, blush, breasts, brown_eyes, brown_hair, cleavage, collar, detached_sleeves, horse_ears, horse_girl, horse_tail, low_twintails, medium_breasts, smile, solo, taikihori, tail, thighhighs, twintails, umamusume, white_background, yamanin_zephyr_(umamusume)