Dark Knight Mask Design Sketches

I found this in my files and thought I'd upload my design phases for curiosity's sake.  These are the design iterations I went through for the Venetian Batman mask.  They ranged from looking like Optimus Prime to the design I eventually went with (and another one that actually spawned the Medieval Batman mask). My design sketches are very horribly unspecific and a lot of what I do for the final measurements is by trial in error in Photoshop with foam patterns before they are actually transferred to leather.

You can see the finished masks here: