I wanted to add some life to the building. Here are a few details I am going to add. The small pewter barrels are large N-scale barrels that work fine as small vats in S-scale. The figure is an M.T.H. RailKing woman.
Here's a close-up of all the interesting windows. The backdrop's sky and tree line is visible in some of the windows, but that is because the building hasn't been attached to the layout yet.
Here's the behind-the-scenes look. I put the woman on one of the reinforcing strips, which worked perfectly. The curtains are from a Pine Canyons kit, and two are from an index card. The three barrels were painted and weathered, and then glued to an L-shaped piece of styrene, and placed in front of the window such that they are somewhat visible. The effect wasn't as dramatic as I had expected (see above photo).
I used some black paper to prevent being able to see through the building, just in case some light gets through. I used some plastic clamps to exert slight pressure on the paper while the glue (Aleene's Tacky Glue) was drying.