I want to keep exactly the same image but make him a bit darker. Put some cargo pants and replace the tools by pliers, mini screwdriver, wire cutter, small multimete. Include an electrical project or electrical drawing (held or peeking from bag/pocket). Put a Belgian flag on the beer glass and fix the coffee cup (only one handler). Put on the backpack some travel vibes like a compass, rolled-up map, travel stickers or tags. Also move the book to the pack. And remember he is an electrical engineer
