I used the Mark Valley face and Zbrush to create this image over spring break.

Here's another version of the poster with the Mark Valley face.

Zbrush model, rendered in mental ray with Sub Surface Scattering.

Here's another version of the poster with the Mark Valley face.

Here's another version of the poster with the Mark Valley face.

Here's another version of the poster with the Mark Valley face.

Here's another version of the poster with the Mark Valley face.