Neat character design, but then, I'm a sucker for pointy ears and tails. You seem to have proportions down nicely, and even the perspective on the raised hand is well drawn. His eye in the corner is a nice touch, too. One thing about the anatomy, though, is that the narrowest part of the human torso is not the waist, but the bottom of the ribs, which is slightly above the waist and level with the elbow. A little more detail on the jeans would help, but otherwise this is nicely done. The shading is very nice, the dark shadows over the eyes has a particularly nice effect. Good work.