1girl, ahoge, animal_ears, armpits, blush, breasts, cleavage, closed_eyes, copano_rickey_(umamusume), detached_sleeves, double_bun, fang, fingerless_gloves, gloves, hair_bun, horse_ears, horse_girl, medium_hair, open_mouth, semino_hazuki, simple_background, solo, umamusume, white_background