This is the tank....










For the diorama I've started with an urban basement of cobblestone. I've used the DAS glued over a poly base and modelled it with a wet ruler to give the cobblestones form,
In the smooth strip i would make a sedewalk and a wall opened by a gate in the center of the scene as this...

but with the wall oriented in an other direction as you can see in the photos below






the inequality of the street will be hided with ruins or other materials.
How is this diorama?
What can i do the wall with the marks of bricks?
Thanks!