How to Digitally paint Bill Murray in Photoshop

Illustrator/Character designer Joe Bluhm talks about his process and philosophy as he paints a caricature of Bill Murray (as Steve Zissou from the Wes Anderson film "The Life Aquatic...") as part of an illustration for a Canadian Pop Culture Magazine called the Naked Eye (available in USA, as well). Using Adobe Photoshop, Joe renders the face in very little time to demonstrate his approach to an entirely digital painting, with a cartoony and loose feel to the art.