..both you and Marvel's lawyers should dig up that how-to-draw book! :) Though I wonder if they have to explicitly say, "though this book teaches you to draw our charaters, they're (TM) us, so you can't use your drawings of them commercially?"
Well, I found the book. I feel like that head looks very familiar, but it doesn't quite match anything I could find in the book. Maybe it was copied from something else? The Nick Fury head is on Pg. 76. If you get that screenshot, I'll try to get a scan.
Wow, it looks more like Nick Fury combined with Charlton Heston AND one of the Apes from Planet of the Apes. Anyway, here's the scan: http://www.flyingomelette.com/ezboard/pap/nickfury.jpg. You can have it if you want it for anything.
I don't really do anything with games other than take in-game screenprints and sometimes manual scans, but you're welcome to do an article/oddities or whatever you like using your scans and my Manta screenprints.