I actually like it. I'm taking a photoshop class right now, so i'm starting to really appriciate computer images like this. Yeah, the slig does look like it was cropped a little badly, but when you shrink it down to the size of your sig banner, you can't even tell. I really like the blood and the background, and adding the skull in there was a nice touch.
You also did a good job of changing the slig's color. I mean, changing the color of something isn't really that hard when you learn to do it, but compared to some other coloring jobs i've seen, the slig really rocks. Kudos. 8D