ok not going to go hard on you since your new,but, it needs work. new text, BLENDING,new bg,and new render. its not what the eyes like.
hehe well its my first try NEVER used photo shop before and im willing to learn so critisism is welcome
Your biggest problem in that sig is the text, try to use something nice and clean. Go here and grab these fonts http://www.hxgfx.com/downloads