Awesome!!!!
Two suggestions on your front seated soldier. The mud on the coat bottom has dark colors on the highlighted area and light colors in the shadow area. you might want to darken up the shadow areas. Don't touch the mud on the highlight it is done perfectly!!!
Also the figure would be blocking the drivers view port. Can he slide over to the left any more.
again amazing job so far. make me want to break out my tank rider kits.
Todd