I still need to paint and add a lot of details, but I've been working on all three at once.
The three story building on the right/foreground in the above picture will be "cut" in half by the front of the layout. I will paint the "wall" that is even with the front of the layout black,
I am going for a look where the buildings are closer to the tracks for this section of the layout.
I still need to add the windows to the larger building in the background. I initially cut the openings for the windows and then add the windows next. This usually involves a large amount of filing and sanding. This makes for a tighter fit of the windows. I also have a fire escape to add to the back of this building.