The background isn't bad horrible. If I'm wrong i apologize deeply but but if you are a bit new to gfx this is a pretty good sig.

Work on your blending. Smudinging and doing anything to overlap teh border onto the render will work nicly.


I recomend trying a few tuts and learning the techiniques they show.
Daemon's tutorials are very good, Ilovecoheed's tutorial is also very great. I learned the basics off of that.
And if you are into halo sigs, I have a halo 3 sig tut, which i have gotten some good responses from.

All can be found in the signature tutorial area.