love the concept and the paintjob! just one lil idea that you or somebody else might have already come up with. possibly breaking or "burning" away a part of the visor glass to expose maybe one eye or a part of the lower jaw. maybe paint some fine, spiderweb scratches? :confused
just throwing it out there. i have not seen a damaged visor glass yet. just thought that might be cool. im considering putting a "bullet/blaster hole" in my visor to expose small, tiny portion of my face (showing only my left eye). it kinda takes a away from the "whos behind the mask" appeal. just throwing it out there. 
great job! cant wait to see the final product!
and for halloween you could always go as a zombie boba!!
j/k