Rule 34 Dev - 1girl artist_name barefoot beach bikini blue_sky blush breasts brown_eyes brown_hair cleavage closed_mouth collarbone flipped_hair girls_und_panzer hand_on_own_chest kneeling matsui_yasutsugu mountainous_horizon navel ocean outdoors parted_hair pink_bikini sawa_azusa short_hair sky smile swimsuit thighs water waves|13318831071