Impressive!  I see you even added the "holes" in the "ears".  I'm curious.  Is it just me, or does it seem as though the front of the throat seems rather flush with the jawline of the helmet.  I thought it protruded a tad more, as in these shots:

http://www.uncleodiescollectibles.com/html_lib/gort/00012.html

It could be the angle of the neck and throat causing the effect.  I once had a friend jokingly say if the helmet were to be removed, we'd see Bruce "The Chin" Campbell ("ash" from "Army of Darkness")revealed.

Sincerely,

Bill

Tempt the Hand of Fate and it'll give you the "finger"!