I think I created a monster-suggestions please

[Catt]

I agree with Mike and Andy.It is afterall a switching layout.If there are woods on the back side either do a photo backdrop or a painted one.You have roads those are scenery,put vehicles on those roads (more scenery) grass weeds track ballast,signs on buildings .If a prototype scene signs that would help identify the area.(more scenery)

If the layout is built,play with it before adding scenery that will let you find out if you need to change things or not.