1girl, barefoot, bikini, blush, breasts, brown_eyes, brown_hair, collaboration, girls_und_panzer, groin, hair_ribbon, handstand, kitazinger, koyama_yuzu, large_breasts, legs_up, looking_at_viewer, medium_hair, navel, parted_lips, ribbon, shiny_skin, short_ponytail, side-tie_bikini_bottom, skindentation, solo, souft, swimsuit, thighs, underboob, upside-down, white_background, white_bikini