1girl, animal_ears, armpits, black_thighhighs, blue_eyes, blush, christmas, closed_mouth, ear_covers, feet, full_body, green_ribbon, grey_background, hat, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, nayuta0603, no_shoes, orange_hair, red_headwear, ribbon, santa_costume, santa_hat, silence_suzuka_(umamusume), simple_background, smile, solo, tail, thighhighs, umamusume