Gas Mask 1 - W.I.P.

I'm calling this half finished so I'm going to throw a 'work in progress' onto the blog seeing as I haven't had a chance to post anything for a few weeks.
This is the first digital painting that I'm actually 'painting' as opposed to digitally 'tinting' a grey-scale drawing so I'm learning a lot with this piece.
I should [hopefully] finish it before the end of the year, the signature is already a year out of date (thinking about it, I'll paint a new signature over the top!)

Photoshop CS3 used over an A5 pen & ink drawing