I've been meaning to try out Mudbox for a while now, and *TARGETE posting a quick portrait he did with it finally gave me the kick in the ass to give it a go.
Modeled this dude in 3D and did postwork and texturing in Photoshop. I don't currently have another 3D program installed, so I couldn't render out, and had to make do with screenshot resolution to do the post work on.
Anyway, I'm happy for a first attempt at 3D sculpting. From start to finish I'd say between 6 and 7 hours. You guys should give it a try if you get a chance, it's a blast.