Lee, I am glad to see your driver has a good job. The excitement of painting figures is the ability to learn by trying new methods.
Mark, I used Testor's Acryl Flat Sand for many stone window sills. Put a drop of Red Earth in it if you want it darker. A thin wash might help darken the sills. I thought the building looked excellent as is.
Scotty, Nice nighttime pictures. Nighttime is when the layout magic happens: road signals, street lights, warm interior lights, and the passing engine headlight and passenger cars.
I just learned my offer for a Lionel 1927610 Canadian Pacific four-car set was accepted. I will be painting more Preiser 65602 Seated People this week after I get AAA batteries for my head light I use when painting. I do like working in the quiet of late night.
Sincerely, John Rowlen