File:Felorc.jpg

Summary
Fel Orc concept art by Samwise Didier.

It is also used in World of Warcraft: The Roleplaying Game. A black and white version of this image is used to show a tainted orc in the RPG.

Source
World of Warcraft 5 Year Anniversary: BattleCry
 * source (as an image on a website)
 * source (as a file link)