1girl, animal_ears, black_jacket, box, branch, brown_eyes, brown_hair, character_name, clenched_hand, crop_top, dated, flower, gift, gift_box, hair_over_one_eye, happy_birthday, holding, holding_gift, horse_ears, horse_girl, horse_tail, jacket, long_hair, looking_at_viewer, low_ponytail, multicolored_hair, nail_polish, navel, open_clothes, open_jacket, parted_lips, petals, pink_flower, pink_nails, ponytail, roku_de_nasu, solo, tail, two-tone_hair, umamusume, very_long_hair, vodka_(umamusume), white_hair