madogawa, flandre scarlet, remilia scarlet, touhou, bad id, bad pixiv id, marker (medium), traditional media, 2girls, arm support, bat wings, blonde hair, checkered background, claws, dress, fangs, female focus, fingernails, frilled dress, frills, hat, hat ribbon, long fingernails, multiple girls, open mouth, purple hair, ribbon, short hair, short sleeves, siblings, sisters, sitting, wings, wrist cuffs