Jeff SImpson is an illustrator and skilled concept artist based in Montreal, Quebec. He is currently employed at Eidos Montreal as concept artist. Simpson creates a mixture of digital art in photoshop and blends it with oil paint. This combination creates loose yet complex images of his subjects (Monsters, deformed faces and larger concept pieces). Images via http://www.emptykingdom.com/featured/jeff-simpson/ and https://www.behance.net/jeffsimpson. This mixed media approach makes Simpson's work unique in the realm of digital concept artists.
Find more of Jeff Simpson's art here https://www.behance.net/jeffsimpson