I agree with the comment that it looks like a wedding cake as-is. However, I think it looks "off" largely because it's sitting there stand-alone. If the station was at street level, you might have something. Might be pretty neat looking when integrated into a multi-level layout, where the front long side is built into the "earth" of an upper level, and the rear side is open as shown. Just my 2 cents.
-Dustin
Dustin, you hit the nail on the head. Harry was experimenting at the request of some of his customers. When we first talked about the GCT base, Harry asked me if something like the platform pictured would be of interest to most people who bought the GCT base and I said "NO".
As I said before, it does provide an option as a stand alone unit for the GCT.