peketar, biwa hayahide (umamusume), umamusume, absurdres, commentary request, highres, 1girl, ahoge, alternate costume, animal ears, armpits, artist name, bike shorts, black shirt, black shorts, blush, breasts, cleavage, cropped shirt, ear ornament, grey hair, hair ornament, horse ears, horse girl, horse tail, large breasts, long hair, navel, open mouth, red-framed eyewear, semi-rimless eyewear, shirt, shorts, simple background, socks, solo, spade hair ornament, stomach, tail, underboob, very long hair, white background, white socks