You should messure yourself and change scale of each part to your dimensions. For adjusting proper scale I recommend using Pepakura Designer option "Measure Distance between Two Points". Just use files for foam and you don't have to add anything extra.
Luckily I'm 6'3" and default scale was perfect for me.
bro your tall af lol looks good though. can you see out of the eyes also? And I'm kinda surprised no one is making the battle damaged version half ripped mask and crushed chest