I'm getting a lot of milage out of this face. It's the same face except I cut off everything but the features and made it into a mask. The stucco wall is a photo and I composite it in Photoshop but the nail is 3-D.
On the nail I am beginning to experiment with bump and shaders. I haven't accomplished much but each move builds upon the one before it.
Actually, relative to the face model. Once it is refined into a satisfactory Robert King model I will probably use it as the basis for all modification, aging etc. as it then has become an actual "charactor".