I actually didn't wanted to share it online cuz it's a special drawing for someone special. But many people told me to put it online cuz it's good. So here ya go:

Le sketch:

I took extremly long to draw this, cuz I wanted it to be perfect for the birthday "kid" xD

Finished:

I used copic markers.
I drew all of his favorite characters (that I know) and other cool stuff that he probably like xD