stay gold (umamusume), umamusume, highres, 15marshu, 1girl, animal ears, blush, breasts, brown eyes, brown hair, clothing cutout, cropped shirt, ear covers, hair between eyes, hands up, heart, horse ears, horse girl, horse tail, layered skirt, long hair, looking at viewer, meni shuki rush-sshu!, multicolored hair, one eye closed, open mouth, pink shirt, pink skirt, shirt, shoulder cutout, skirt, small breasts, smile, solo, streaked hair, tail, white hair