This reply of mine is a continuing share about this diorama’s build story. Just check it out and have fun.
The pictures above reflect my action when constructing the floor of the building. I have to made the floor just about 3cm higher than the surface of the pavement along with a permanent stairs added in front of building’s entry. Such design would affect on an empty space below the building’s floor and I filled such space with ex-used sprues, glued them simultaneously, let them dried in several hours, and covered them with another ex-used carton sheet.
After that, I continue to raised the building blocks into a form of wall as depicted above.
In order to complete the construction of the wall, I continue it with constructing a doorless building entry in which the height of the entry was measured by 1/35 figure with standing position. After getting the desired size, I began the real construction by using ex-used wooden ice cream sticks into the shape of the entry.
Those picture above depict how I covered the raw wooden sticks with epoxy putty and in the other side, while I ran out of my epoxy putty stocks, I used also the modelling clay to cover it as an alternative beside of the putty with a similar result. For the wall, I decided to shape it as stones rather than bricks. Such decision was just out of my imagination only and some criticsm arrives from our fellow modellers, Sean Malloy and Frank Wetekam, due to the final result. Thank you guys, I will learn a lot.
Meanwhile, I set the floor tile as a square also but smaller than the pavement’s square, approximately 0,5cm x 0,5cm in size, as inspired from Keith Magee’s diorama entitled “Triage at Aachen”.
The picture above shows the beginning of basic painting. A mix of burnt umber, burnt sienna, and flat white were used for basic coloring of the stones, while a mix of vermillion and burnt sienna were used for basic coloring of the bricks of the building entry.
Finally, I performed some positioning tests of the GI figures, German troop figures, ruins, and the AT gun (not appear in those photographs). Several trial & errors happened, but finally I got the desired finished result along with its’ reimprovements day by day as you can see on Reposted - “Wait for My Command!” Diorama .
Please be kind for any additional comments and critics, guys… since I do NO research or something at all for accuracy of the events of this diorama project. Once again, just feel happy when it’s done and improved. By the way, here is the web address to the archived post:
Still in learning process, still lack of many things and details, but I hope this build story will be useful and have fun for all of us! 
Kind regards from Indonesia, 
Garry