Holy hardwork and creativity Batman! Great work with what you used, I can see a lot of time and effort went into the bio so far....and it's worth it. It looks great!
Great job on those bio. I could have sworn they were metal at first glance. A while back I ran across this website that gives you and idea on how to make a mask out of cardboard. Even though it's a Boba Fett mask, but still a nice tutorial.