This is the side of the home not seen in the other picture. The illusions continue. Draw a straight line from top to bottom that bisects that window at the bottom left ....that a completely flat surface. Draw another straight line that runs left to right and and that bisects that window at the top right of the picture. That's a flat, continuous surface the whole way.

I have idea why the overhang is there. Apparently the wood planking on the overhang didn't provide for relief from the rain, or light, and he settled on another solution. There is a small window under the overhang. There's a very small room that I could see, with only a commode in evidence.