The Art of Franz Steiner

When I first saw this guy's work, I thought that all of the subjects in his pieces were modeled in Maya. I finally got motivated enough to look up his professional site and I found that the subjects are a mix of both humans and 3D models.
He works at Blutsbrüder Design... a design studio located both in Los Angeles and Germany, which him and father started. Very cool effects. There are many more examples of the blending of human forms and 3D models on the company's website. There are also many examples on Franz's CGPortfolio site.

Below is the original photoshoot image and the post 3d production work in the piece called "Bodyshopping 01". A lot of very impressive techniques being used here.