Yay! John form the comic! Keep the middle finger alone, they only put the "two-finger salute" in the comics to make it less "obscene." Which is ironic, considering John dialog is 10 times worse then the middle finger.
It looks great dude, but I feel the same 'loss-of-something' that you do.
For me, I think the pencil work had more of a feeling of depth between John and the background. The inks seem to have become a little more muddy between the fore and background. Maybe a little less detail behind him?
I dunno, just a thought.