1girl, alternate_costume, animal_ears, breasts, brown_hair, chibi, cleavage, collar, ear_ornament, hair_between_eyes, horse_ears, horse_girl, large_breasts, long_hair, long_sleeves, looking_at_viewer, mmm_(mmm623), multicolored_hair, open_mouth, pout, red_eyes, shirt, sirius_symboli_(umamusume), solo, streaked_hair, twitter_username, umamusume, unbuttoned, unbuttoned_shirt, very_long_hair, white_shirt