Here is a brief run down on the creation of my Rebecca image.  I’m only running down the creation of the head, though the creation of the rest of the image was identical.  The hair and eyelashes were both created with painted hair planes, with corresponding transparency maps.  The shader for the hat was based off of the MadVelvet shader, with an additional bump map and ramp to create a stronger tooth to the material.

I began with creating the base mesh in Maya, and using Zbrush to create the displacement and bump maps.  I also used Zbrush to paint the various textures including the spec and epidermal maps.  The maps were also tweaked in photoshop after the Zbrush painting was completed.  For the bump map, I created a seperate Ztool for just the skin bump outside of the displacement.  This gave me a little more control over the final texture of the skin.

Above you can see the various maps, as well as the final rendered images.  The final images were renered in Mental Ray with final gather.