a few days ago i wuz tryin to make a sig with that image, but i cant understand photoshop :/ urs is alright tho.
La Sofa: READ TUTORIALS. Cause, this is not very well executed at all.... work on your coloring, and your effects. Cause you either have crappy colors, or none at all. The text is small, and unreadable. The color choice nd placement is poor, because it doesn't blend in with any part of the tag. There's a white glow around the render, but it makes no sense. Where is it coming from? What is causing it? how? And teh dust in the back is really not making much sense to me at all. If you say "he's in a sandstorm" then no, it would be on him, too. I may seem a little bit harsh, and i'm sorry for that.
Well, I am not an expert but you could read some tutorial like /D/J/_!DaNgEr_*MOU5E* said, too add more efects, and the image is dark, make it brighter, too make the text bigger and with a better font, and maybe add some C4D, I planning adding them in my next sig, and have luck in the future!