Its not bad, looks like you just threw some ---- in there. A little dark and work on text a little. Its not bad.
Theres no depth to the bg and the text is terrible. The render looks like you put its blending mode on exclusion, thus making it almost impossible to see what it is. The red splatter and the blue swirl dont belong. Its a pretty bad sig overall. I would suggest looking at the tutorials section, it would help a lot.
I would approuve .Atrevu if Blackfile was an expert or a courent member but we have to be patient and comprehensive with beginners. Blackfile, you did a great job for a beginner, it's clear that you understand pretty well the basics with photoshop but you have to work on the details and the effects. To do this, I propose you to go read some tutorials. It would help you a lot. Good luck in GFX