1girl, ahoge, animal_ears, armpits, arms_up, breasts, cleavage, copano_rickey_(umamusume), double_bun, fang, hair_bun, horse_ears, horse_girl, horse_tail, looking_at_viewer, medium_breasts, medium_hair, purple_eyes, simple_background, solo, tail, umamusume, white_background, yami_anko