I like the interior of the building, nice job. I haven't seen building painted and weathered quite like that. The damae is nice. I like the sidewalks too.
Interesting use of the US figure

Couple of things, I would add some nail holes in the floors, use a pin and push in holes to represent where nails were used. Touch the holes with a bit of dark wash.
The ladder needs a bit of work. In my opinion if you lay the two long piece down parallel then glue the rungs on top of the long pieces you'd get a better looking ladder.