A bit more scenery detail, and one more spur serving an oil storage tank (Lionel) and an operating oil derrick (Lionel) in the upper-right corner. This changed the slope of the far right outside O-72 curve to 3% (which is the maximum layout grade).
When kicking-back to watch trains run, I would have two trains on the large O-72 outside route (about 42'), following each other at the same speed, and a third train running the return-loops from Granite Falls up to Clara City and then back. That would be pretty nice and relaxing!