2girls, :d, ahoge, black hair, bow, braid, bright pupils, brown eyes, closed eyes, closed mouth, dated, facing viewer, ferris wheel, fireworks, green shirt, grey hair, hair bow, hair ornament, hairclip, happy, happy birthday, heads together, long hair, looking up, multiple girls, night, night sky, outdoors, pink shirt, shirt, short sleeves, siblings, side-by-side, sidelighting, sisters, sky, smile, twin braids, upper body