I'm not finishing the scenery 100%, just trying to cover some of the blank foam in between where the industries will be. It'll be easy enough to come back later and add more trees and details.
I think I hold up on the NS line and go back to the WSS/HPT&D island and work there for awhile. There's a good bit to be done on the upper level. I've learned that it's easier to finish major work on the upper before doing the lower.... less chance of dropping plaster and glue down on finished scenery.