Cobra, it's some good amount of work you put there. I like the mud effect on the GVs. If I may "critic", I would keep the mud only to the lower part of the GVs, and I would put more effort on the rivets and panel lines of the planes.
The P47 for example, about 90% of the panel lines are actually rivets. You need to draw them one by one. I ear your pain, I'm doing a Gabby P47 and it takes me for ever only because I'm trying to give the correct look.
Keep on the good work.