Did this up at NYCC 2011.
Mind you the colors are a bit off from the original due to my poor iphone pic although it does give it a nice earthy feel.
I had a request to do Iron Man from the Tesla version I did a while back [link]
Went a bit different with colors this time as I was travelling light so I brought my watercolor pencils which worked out Great!
I think I'm gonna stick with these from now on!