sweet work bro
about the pentooling.....

on this one, it looks kinda iffy.....
if u have MSN (pm it to me), send me the .psd and ill show u what i mean (if u dnt understand the below that is).....

basically.....make it look like it is actually wrapped around the guy....
heres an example of what i mean (one of my sigs i made about a monthy or two ago).....



to do that.....
first duplicate the pentooling layer (and hide the original one - this is just a precaution in case u accidentally mess up).....
then think about the perspective of the pentool lines.....
which parts need to be hidden (cos they're behind the guy) and which areas need to go over the top......use the eraser (soft) to erase the parts which need to be erased.....

just by doing the above, u can make the sig look less flat and the focal will 'pop-out' that lil bit more