Hoping this isn't an insult, I'd like to see a huge concrete tunnel portal to finish off the scene below the street. Or, to retain a clear view of trains lined up, make a faux steel girder elevated subway line scene parallel to upper buildings. Ultimate would be if you could raise the buildings on the right to same level of ones above the diesels, leaving the front view wide open to view the underground rail scene.
Its still in progress. I have a concrete wall to put there. if you look at another pic, you'll see the wall.
