Looks good Kravenous. Nice contrasts you have here between the sharp hair detailing and the subtle muscle forms for the face.
I like both z and mudbox, but I think Mudbox pro is just way overpriced for what it can do. It's basically just a detailer type of tool.
Not gonna happen but I wish Autodesk will price the current pro version with it's entry level price before and after they launch v. 2 with the expected feature upgrades like for texturing, posing, etc.