1girl, ahoge, animal_ears, arm_behind_head, armpits, biyondo_(beyondhashikure), black_one-piece_swimsuit, black_thighhighs, breasts, brown_hair, competition_swimsuit, covered_navel, cowboy_shot, gradient_background, green_eyes, grey_background, hat, highleg, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, mini_hat, mini_top_hat, mr._c.b._(umamusume), one-piece_swimsuit, solo, steaming_body, swimsuit, tail, thighhighs, top_hat, twitter_username, umamusume, white_headwear