Very cool redesign, I already get why you made the nacelles like they are so the other thing I would say is to alter the very back end a little, it seems too boxy right now, maybe make the angle at the back shallower and make the section longer? Just that bit reminds me of one of those pics on shipschematics where they but blocks with all these sharp angles and blunt sides on otherwise sleek looking ships. The rest of it I can't really find anything to complain about.