1girl, 2021, animal_ears, biwa_hayahide_(noel_rouge_carol)_(umamusume), biwa_hayahide_(umamusume), blush, breasts, brooch, cleavage, glasses, horse_ears, horse_girl, jewelry, large_breasts, long_hair, long_sleeves, looking_at_viewer, official_alternate_costume, open_mouth, semi-rimless_eyewear, solo, sparkle_background, suzu_(suzuame329), tiara, umamusume, white_hair, yellow_eyes