Post as many WIPs as you please SDL. I like seeing them.
I really like your composition and the details I can see so far SDL, but I do hope you can add a little more light strategically here and there. The image looks pretty dark on both my home monitor, and the one here at work.

@ICM- you can post as many "mini-tuts" as you want too!
Your examples here really helped to clarify how to use a mask render in PS. Thanks!