1girl, solo, eyewear on head, white bikini, frilled bikini, navel, sunglasses, low twintails, looking at viewer, outdoors, hair bobbles, white-framed eyewear, open mouth, official alternate costume, collarbone, day, arm up, blue sky, water, cloud, small breasts, :d, bare arms, bare shoulders, armpits, inflatable toy, adjusting eyewear, sunlight