Excellent use of space in the track plan design, in my opinion. I like the placement of the helix, sort of out of the way. They can be space hogs. Like the fact that the upper shelf seems to have a shallower profile, out from the wall, than the lower level, keeping the lower level more visible. Less trackage on the upper level keeps that shelf shallower and makes sense with your overall concept of an out-and-back logging operation, if I see your operating intentions correctly.
Overall, very impressive layout.