Paul
I enjoy your builds and this is another superb building and painting job. Each of the elements of the model is an outstanding piece on its own. I have just some small comments about the overall effect. I think the base is maybe just a smidgen small for the model it is presenting. You have three basic elements to the composition but to my eye they do not connect to each other but seem a little disjointed. Finally the straight lines of the building and the tank tend to make the piece a little static and don't complement each other well. This might sound a little artsy fartsy (I am after all in the artsy business) but a dio should, in my view, cause the viewer's eye to flow around the scene and connect all the details together. Static straight lines tend to make the viewing experience somewhat staccato, if you get what I mean, and diminish the "wholeness" of the scene.
I hope you don't mind these, hopefully, helpful little comments and of course you can always ignore them.
Looking forward to your next build
ATB
John