A teenage boy character design, manga anime style, age 16, short dark messy hair, striking vivid violet eyes with hypnotic gaze, piercing purple irises that seem to glow faintly, thin athletic build, wearing worn tactical clothing and survival gear. Under his left eye, a precise QR code-style tattoo perfectly following the natural curve of his lower eyelid from inner corner to outer corner, ultra-thin geometric matrix pattern with fine perpendicular lines forming small data squares, black ink subtle against skin. Serious determined expression, post-apocalyptic survivor aesthetic. Clean manga lineart, cel shading, dramatic eye lighting emphasizing violet color. Full body reference sheet with detailed close-up of face showing eye color and tattoo precision.