2girls, anniversary, arm up, armpits, black dress, black footwear, blue hair, blue ribbon, blunt bangs, blunt ends, blush, boots, chromatic aberration, collared dress, covering mouth, dress, finger counting, full body, grey dress, grey footwear, hair intakes, halftone, hand over own mouth, hand up, knee boots, light blue hair, long hair, looking at viewer, multiple girls, neck ribbon, no detached sleeves, one eye closed, one side up, open mouth, outline, pink eyes, pink hair, red ribbon, ribbon, short dress, siblings, sidelocks, sisters, sleeveless, sleeveless dress, smile, standing, standing on one leg, uneven eyes, v-shaped eyebrows