A lion door knocker. About 2 hours of work in total..a straight copy from his own work in the book done in relief from a simple plane
This is a beautiful book. I've seen a lot of ZBrush tutorials and other materials and I'd say that this is the best single authoritative source on all the rich powers of ZBrush there is.
http://www.highend3d.com/news/books/ZBrush...stores-416.html