Look at the image below with 3-D glasses.

3-D Concept Sketch for The Hobbit

Peter Jackson recently released Production Video #4 on the official The Hobbit Blog. It includes details on the technical aspects of filming in 3-D – and I love that Jackson names his cameras after real people (and animals too!). But the most interesting part of the video is the section on the 3-D drawings done by The Hobbit’s conceptual artists Alan Lee and John Howe.