I think that's pretty good lighting(well better than mine) also a tip..find more text to work with..You've used that same text in everyone of you sigs..(I think).
Yeah your right, I just never bothered changing it because right now I'm just working on improving my renders and backgrounds. I also have problems downloading new fonts and brushes I need someone to explain how to do that.
dafont.com is a good place to download fonts..just download them and go to control panel and put them in the fonts folder, and for brushes I usually just google photoshop brushes.