same kujira (challenger 310), mejiro ramonu (umamusume), umamusume, commentary request, commission, highres, skeb commission, 1girl, alternate costume, animal ears, armpits, black hair, breasts, character name, competition swimsuit, hand on own hip, holding, holding towel, horse ears, horse girl, horse tail, large breasts, long hair, looking at viewer, mole, mole under eye, multicolored hair, one-piece swimsuit, parted lips, purple eyes, simple background, solo, streaked hair, sweat, swimsuit, tail, towel, white background, white hair