Magnificent! I assume this is 1/160 scale (N gage for model railroaders), based upon the towers... I was using those kits in a Gamera diorama I never finished. Of course, the military vehicles might be in the close-to-N gage 1/144 scale. Either way, this diorama is an impressive size, to accommodate everything including the alternate Big G.
Any information about the creator of this awesome piece? Whoever it is, the work is amazing!