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