It definitely looks like an alien, it's physique suggests it has some type of intelligence, perhaps it lives in a civilisation not unlike humans. It appears to look quite strong, the things protruding from his elbows look like they may be used in combat (not sure what purpose the ones on the back of the knee could have). The shape of his head is very similar to that of the creatures from Alien, but it seems like it would be a carnivore. Can't see what the thing on his back looks like, maybe some kind of protection.
My guess to where it lives is somewhere filled with trees, a dense jungle, most likely quite humid.
That's my take on the creature...
Also, an incredible drawing
Edited by creativebunch, 22 April 2012 - 10:29 AM.