A photo for most of my days....
What a smart boy.Be proud!!!
Looks like you have either a future engineer, architect, or....pirate on your hands :)
He is quite the master. A career in design perhaps????
I think you have a budding engineer or architect on your hands. My youngest son was so similar... Always designing, modifying, improving and rebuilding his legos. He's entering his final year of Mechanical Engineering.