1girl, alternate_costume, animal_ears, blush, breasts, brown_hair, cleavage, daiwa_scarlet_(scarlet_nuit_etoile)_(umamusume), daiwa_scarlet_(umamusume), hair_intakes, heart, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, official_alternate_hairstyle, red_eyes, santa_costume, simple_background, solo, sugi_(user_nash8444), tail, tiara, umamusume, very_long_hair, white_background