Okak, here's the good news: Your finish is excellent, decals look just about as good as they come, no silverng and blended into the nice subtle dusting. I don't see any seams, even along the barrel and on top of the .50, where many guys forget to clean up, or sprue attachement leftovers. The stowage, especially the wooden box is very nicely shaded and the "rope" tp tie it all down has a nice taughtness to it.
IMHO, weathering can be very easily overdone, hiding the really nice work you've done here, but that's my opinion and I know a lot of other guys love to see the mud boggers. #:-)
Suggestions, The bad news, if you will, I agree with Cliff, paint the inside of the barrel black, if nothing else, to give it depth. Paint the inside of the spotlight on the roof bright silver and add a drop of clear resin or clsoe it with MicroScale Krystal Klear. Consider adding a crewman to the hatch, it looks kind of empty in there. Double check your references...Is there a handle for thos two napsacks to be hanging from?
Overall, an ecxcellent piece of work . Kudos!