I ran into Fowkes at Comic-Con, where he was demonstrating charcoal drawing for an enthusiastic audience.
I have always been impressed with how Fowkes works seamlessly between different media. He uses Photoshop to create wonderful concept, visual development and production art for state of the art CGI movies:
My favorites are his watercolors. he creates light and elegant landscapes, each one a tiny gem:
At Comic-Con, he displayed his approach with charcoal:
At this point in the demonstration he is saying, "I'm desperately trying to keep it simple. You've got to keep it simple."
I think one reason Fowkes is so successful with a variety of materials is his philosophy, "There are dozens of ways you can apply the medium. It's the principles of value (light and shadow), structure, edges and composition that really matter."