kai tomohisa, matsuoka chie, sentimental graffiti, painting (medium), third-party edit, traditional media, watercolor (medium), 1990s (style), 1girl, breasts, breasts apart, competition swimsuit, cowboy shot, day, diving mask, diving mask on head, female focus, from side, goggles, goggles on head, hair between eyes, high ponytail, highleg, highleg one-piece swimsuit, holding, holding swim ring, innertube, legs apart, one-piece swimsuit, outdoors, ponytail, postage stamp, retro artstyle, snorkel, solo, stamp, swim ring, swimsuit, yellow one-piece swimsuit