WAIT i think you should explore this faceless helmet look just a little. It makes me think of the Daredevil for being blind or the Slender for being completely faceless. If you don't use this idea then I might.
Useless?! Tell me it's useless next time you get attacked with a sword. Which happens very often, mind you.
Awesome job on the metal. It looks very authentic. The engravings look great as well. I'd love a tutorial on it, but I understand completely if you don't want to make one. But can you at least tell me how you made the engravings look like that?