Very cool complete scene.
I recently have started listening to a couple of different model railroad podcasts. One of the most interesting subjects, described in interviews on both the Model Railway Show and also on Model Rail Radio (both on iTunes) was a micro layout called Brooklyn 3Am.
I cant say enough about how awesome this little scene is, and how it uses a lot of small effects to complete the scene, even to the sound.
As described on the website for the display it is built on a foamcore table.