THis probably is one of your better sigs. Nice job. But i have a couple crits.
It looks like you did a slight gaussian blur and then set it to a blending mode like soft light or something. I would get rid of that it makes it look liek odd, kinda like an outerglow actually which I'm sure you know is something to stay away from.
The bledning is good, and the BG is good, but the lighting is WAY off :P. From the looks of it it looks like it should be in the opposite corner. With a slight/small light behind his head on the right. I would fix the lighting and then it would be A lot better.

BTw Great job with the text! It took me like 5 minutes of studying it to even find the text.


Great sig but you need to edit a couple things , really this is one of your best.