It looks really good. The boot marks dust looks nice. Two snall corrections for you though. First, only the upper left oval on the tail lights is red. The right side should be just a black slit top and bottom. Also, on the main gunner's sight, there are two angled bars across the glass. These are windshield wipers and should be black. You have them unpainted.
Other than that, it looks great. The barrels look really good. Great job.