1girl, aoi_kujira, bandeau, bikini, black_hair, breasts, brown_eyes, floral_print, girls_und_panzer, hat, large_breasts, long_hair, looking_at_viewer, navel, nishi_kinuyo, o-ring, o-ring_bikini, open_mouth, smile, solo, strapless, strapless_bikini, straw_hat, swimsuit, water, water_drop