Hello Harry!
Looks a lot better now - although I have my problems with it. For me the contrast between the "clean" and the "dusty" areas is too stark, and they are too close to one another. I'd recommend blending them together a bit - with an airbrush or something like that. Other thing - the colour of the dust doesn't match the colour of the groundwork, the tanks look a bit like they just teleported on the spot. I'd recommend "weathering" the base a little with the same pigments - that should blend the tanks right in. Make the grass a little dusty, too. So - good luck with your dio and thanks for sharing, have a nice day
Paweł