1girl, d, animal_ears, belt, black_shorts, black_sleeves, blue_eyes, bracelet, breasts, brown_belt, brown_hair, crop_top, demon_wings, detached_sleeves, fingernails, full_moon, hair_between_eyes, halloween, horns, horse_ears, horse_girl, horse_tail, jewelry, legs, looking_at_viewer, medium_breasts, mejiro_palmer_(devil_in_the_moonlight)_(umamusume), mejiro_palmer_(umamusume), midriff, moon, multicolored_hair, multicolored_nails, nail_polish, navel, official_alternate_costume, open_mouth, ponytail, short_hair, shorts, single_detached_sleeve, smile, solo, stomach, streaked_hair, tail, thighs, tks_(526tks), umamusume, white_hair, wings