Add detail to boxcars with open doors.  Add some crates, boxes, tarp load, or figures to your boxcars that have open doors.  There are even lumber, barrel, or bag loads you can place into an opened boxcar.  You can even add a fake wood flooring to add more detail.

For the TL;DR - just scroll down an look at photos is useful since it's about architecture :) Feedback appreciated !

I want my layout to have a high level [ ... ]

Found a new resource for windows,doors,buildings,and cars/trucks ect.It's called micronart. You can find them on the web at www.micronart.com they can definetly [ ... ]

     Since NOBODY will be reading this I guess I can vent here. 

     Same thing other people have griped about in [ ... ]