Looks pretty nice with only one suggestion; your suspension looks to be too soft so that the vehicle sits too low to the ground and the track appears to be sagged too much. Sitting on flat ground, the top run of track should sag only enough to just touch the top of the middle road wheels. It should not lay across the top of several road wheels as it does in a couple of your images of the painted model. The fist painted model photo shows the track and suspension in the correct arrangement.

It certainly is a nice looking build otherwise.

Paul