1girl, alternate_costume, animal_ears, artist_name, black_background, blending, breasts, brown_hair, cleavage, closed_mouth, collarbone, hair_between_eyes, horse_ears, horse_girl, large_breasts, looking_at_viewer, mukakin, multicolored_hair, red_eyes, short_hair, simple_background, sirius_symboli_(umamusume), smile, solo, streaked_hair, umamusume