1girl, alternate_costume, animal_ears, armpits, belly, bikini, blue_eyes, blush, breasts, brown_hair, cloud, day, domino_mask, el_condor_pasa_(umamusume), fence, from_below, grass, hair_between_eyes, hand_on_own_head, herohero_(higashi_no_dou), horse_ears, horse_girl, horse_tail, knees_up, large_breasts, long_hair, mask, navel, outdoors, plump, presenting_armpit, showering, sideboob, sky, solo, stomach, swimsuit, tail, thighs, umamusume, underboob, unworn_mask, wooden_fence