Moonman your clean ups look good but unfortunately they do not address the biggest problem of his design, which is the track clearance on the right.
I downloaded your files and if you notice the graded climb is only 3inches!!! above the lower track when it passes over.
He might put in a drawbridge or run flat trains, but in any other case 3 inches is not nearly enough space, especially since he needs to factor in the half inch of subroadbed for the grade on top of the height of the trains passing below it.
