4girls, blue eyes, bouquet, cowboy shot, detached sleeves, flipped hair, green skirt, hand on own face, happy birthday, haruna (kancolle), headgear, hiei (kancolle), japanese clothes, kantai collection, kirishima (kancolle), kongou (kancolle), looking at viewer, multiple girls, oohashi yanta, plaid, plaid skirt, ribbon-trimmed sleeves, ribbon trim, skirt, smile, solo focus