arn7, obey your master (umamusume), umamusume, umamusume: cinderella gray, commentary, highres, 1girl, m/, american flag, american flag bikini, american flag print, animal ears, barefoot, bikini, blonde hair, blue eyes, blue hair, blush, bracelet, breasts, flag print, flag print bikini, gold bracelet, gradient hair, hair between eyes, hand on own hip, horse ears, horse girl, horse tail, jewelry, long hair, looking at viewer, medium breasts, multicolored hair, navel, print bikini, simple background, smile, solo, standing, standing on one leg, star-shaped pupils, star (symbol), stomach, swimsuit, symbol-shaped pupils, tail, thighs, toes, white background