James Gurney is the creator of the Dinotopia book series and is one of the best book illustrators alive today. His work is in the league of N.C. Wyeth and Howard Pyle.
James has a new instructional painting video called Fantasy in the Wild: Painting Concept Art on Location for sale as a direct download and on DVD. In the excerpt above, James shows how he made a small model of an excavator robot out of craft foam to assist him in painting an urban attack scene. James' teaching style is so friendly and warm. I have met him a couple of times, and this video captures his personality perfectly.