moonsorrow, original, commentary request, commission, highres, large variant set, pixiv commission, variant set, 1girl, armpits, arms up, black socks, blue one-piece swimsuit, breasts, brown hair, closed mouth, collarbone, covered navel, expressionless, full body, grey eyes, hands on own head, kneeling, long hair, looking at viewer, one-piece swimsuit, simple background, small breasts, socks, solo, straight-on, straight hair, swimsuit, white background