Lee, I really like the look of the distant hills. Did you paint them in and/or are they flocked with a fine or course turf? They blend very nicely with the 3D vegetation. Very nicely done!
I have an area that I would like to do something similar. I need to blend in some distant hills to help frame the TV/Radio tower. I was thinking of shaping and layering 1/4" foam core and covering them with shades of green paint and possibly flocking it with some fine or course turf?
Thanks for the kind words!
The photo of mine is probably around seven feet deep to the wall, and there's a walking aisle behind the train that you can sort of make out on the right of the shot.
I made the hill profiles with MDF board, cut with a saber cutter. I then painted them green and hit them with Woodland Scenics ground foam. I made a point of covering the delineation of horizontal to vertical with either bushes, trees or a one spot where neither would fit, a long fence.