1girl, alternate_costume, animal_ears, bat_wings, blush, breasts, claw_pose, cosplay, embarrassed, flower, halloween, hat, hat_flower, horse_ears, horse_girl, jack-o'-lantern, long_hair, looking_at_viewer, mejiro_mcqueen_(umamusume), nyorotono_(amafurashi), pink_flower, pink_rose, purple_eyes, purple_hair, rose, small_breasts, solo, swept_bangs, top_hat, umamusume, upper_body, wavy_mouth, wings