1girl, alternate_costume, animal_ears, aston_machan_(umamusume), bad_pixiv_id, blush, breasts, buruma, collarbone, crown, green_eyes, hair_ornament, horse_ears, horse_girl, horse_tail, jacket, medium_hair, shishishi, simple_background, skindentation, smile, solo, tail, thighhighs, track_jacket, umamusume