yuuyuu (3jjbn), biwa hayahide (umamusume), umamusume, commentary request, highres, 1girl, ahoge, animal ears, beach, blue sky, blush, breasts, cloud, competition swimsuit, glasses, grey hair, hair between eyes, highleg, highleg one-piece swimsuit, horse ears, horse girl, horse tail, large breasts, long hair, looking at viewer, multicolored swimsuit, ocean, one-piece swimsuit, outdoors, parted lips, purple one-piece swimsuit, red-framed eyewear, semi-rimless eyewear, sky, swimsuit, tail, two-tone swimsuit, under-rim eyewear, water, white one-piece swimsuit, yellow eyes