I may have to change the plan slightly as I purchased a backscene and it's slightly shorter than my backscene boards (left, back and right), so to get it to fit, I will curve it in slightly at both corners (that will hopefully look better anyway). However, this means the track top left will hit it at an angle, so I may change that track to be a siding and have the lower left-hand track be the running line, like so: