1girl, bare_arms, bianca_(punishing:_gray_raven), bikini, black_bikini, blonde_hair, blush, breasts, collarbone, day, feet_out_of_frame, foot_out_of_frame, large_breasts, navel, open_mouth, outdoors, ponytail, punishing:_gray_raven, solo, swimsuit, wcao_(pixiv_21367561), yellow_eyes