Instead of spamming up the Graphics board, I decided to just add all of my stuff i made i Photoshop to one topic. NOTE i just got photoshop yesterday and am still learning the basics
Not bad, light source seems off since its so distinct. Try using a lens flare. Make a new layer and go to Image > Apply image. Then go to filter > render > lens flare, and use the 105 mm one and play with the brightness... that should give you a better light source. For the text, make it a bit bigger. I like to do a white text, set on overlay, with a drop shadow and bevel size zero. That is a really good sig for a beginner though, keep it up.
cool me like it i'm not anygood at making siggs so i can't say what up do right and wrong but i like it