1girl, armpits, arms_behind_head, arms_up, barefoot, bikini, black_ribbon, blaze_(blazeillust), blush, bow, bow_bikini, breasts, brown_eyes, cameltoe, closed_mouth, frown, girls_und_panzer, hair_ribbon, leaning_back, light_brown_hair, long_hair, lying, navel, on_back, one_side_up, pink_bikini, ribbon, shimada_arisu, simple_background, small_breasts, solo, swimsuit, white_background