1girl, animal_ears, bare_shoulders, black_background, blue_sleeves, breasts, brown_hair, cleavage, closed_mouth, collarbone, detached_sleeves, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, low_twintails, sdwing, smile, solo, tail, twintails, umamusume, yamanin_zephyr_(umamusume), yellow_eyes