Hmm well. imo THIS SIG IS A BIT OF A WIP. ERR SHIT SRY FOR CAPSLOCK. Ok so. The bG is okay but the smoke isn't helping too much it just seems a bit boring and flat. I'd try to add somethign to it, maybe a c4d?

The render is cool but it isn't blended with the BG at all. try blending him in more with the bg maybe overlay some smoke onto his eages or smudge a bit ontop of him. Whatever it is just amke him look liek he's actually part of the BG rather than ontop of it.

text is not so great. The white stands out a bit too much and the thrashed text and the other kidn sticks out too much. Its important to remember to try and consolidate your etxt. Right now theres etxt on both sides keeping my eye bouncing from one text to the other and never focusing on what should be the focal (the bily joe). Also its always better to use default fonts when you are figuring text out. it'll work better than downloadable fonts 99% of the time and will save you DL time. I think you should try out my text tut in the text basics area. it might help you on your text a bit.

Also try out a few signature tuts as well. they might kikstart your gfx abilities back to how theyw ere before.