koyubi (littlefinger1988), sakura bakushin o (umamusume), umamusume, 1girl, animal ears, arm up, bow, bowtie, clenched hand, collared shirt, frilled skirt, frills, full body, greyscale, half-closed eyes, horse ears, horse girl, horse tail, mary janes, monochrome, parted bangs, pleated skirt, ponytail, sailor collar, sailor shirt, school uniform, serafuku, shirt, shoes, short sleeves, skirt, solo, standing, standing on one leg, tail, tracen school uniform