Marco. I feel bad being the first to critique, but I feel you can handle it.
Firstly, I absolutely LOVE him. Don't misunderstand.
He evokes memories of Uncle Henks Harley robot, and that is a great thing.
The color, the aura, the tea-tin head, and the exhaust ports are OUTSTANDING !
I wish 2 things. I wish he had gull-wing opening chest doors, and
I wish he had a functioning Flux Capacitor in his chest, instead of a simple graphic.
Aside from those nit-picks, he is Awesome ! Good Job, my friend !!!!