4girls, bat wings, blush, bow, closed eyes, crystal, elis (touhou), fang, fingernails, flandre scarlet, hair bow, halloween, halloween costume, happy halloween, hat, kurumi (touhou), long fingernails, long hair, multiple girls, one eye closed, open mouth, pointy ears, remilia scarlet, roamu 65, sharp fingernails, short hair, siblings, side ponytail, simple background, sisters, skin fang, smile, touhou, touhou (pc-98), white background, wings, witch hat