All my models have extra wood on the inside to make them sturdy and keep the walls and roof from bowing.
This model has three kinds of roofing material to give it interest. The shingles have been pried up to make them stand out and then weathered.
A roof mounted water tank adds a nice touch of detail along with a couple skylights.
This end of the structure needs some stock yard pens that could easily be scratch built.
This is an Ad Space