1girl, animal_ears, bad_pixiv_id, black_gloves, blue_flower, brown_hair, collared_shirt, evil_grin, evil_smile, fangs, flower, frilled_hairband, frills, gloves, gradient_background, grin, hair_over_one_eye, hairband, half-closed_eyes, halloween, horse_ears, horse_girl, long_hair, looking_at_viewer, official_alternate_costume, puffy_sleeves, purple_eyes, ribbon, rice_shower_(make_up_vampire!)_(umamusume), rice_shower_(umamusume), rqtkrqtk, shirt, smile, solo, teeth, umamusume, upper_body