:d absurdres akiyama_yukari arched_back ass back bikini bikini_shorts brown_hair camouflage camouflage_bikini color_trace colored_pencil_(medium) commentary cowboy_shot eyebrows_visible_through_hair from_behind girls_und_panzer green_bikini highres kitazinger leaning_forward looking_at_viewer looking_back messy_hair open_mouth partially_colored short_hair shorts smile solo standing swimsuit traditional_media wet