1girl, alternate_costume, animal_ears, black_footwear, blush, breasts, brown_hair, crossed_legs, dated, dress, hair_between_eyes, happy_birthday, hawawa_(hawawauma), high_heels, horse_ears, horse_girl, large_breasts, long_hair, looking_at_viewer, multicolored_hair, purple_dress, purple_eyes, sandals, simple_background, sitting, smile, solo, streaked_hair, symboli_rudolf_(umamusume), toeless_footwear, umamusume, white_background