By now you've seen the shiny chrome face of Cobra Commander in G.I. Joe: Retaliation (it was in the trailers). The mask is truly a glorious departure from the terrible clear scuba gear from the former Joe movie. But this Cobra Commander might not have had any mask at all! Early G.I. Joe: Retaliation concept art from Aaron Sims shows alternate Cobra looks that almost were.
Plus, there are these amazing environments, created for the film by the concept artist.