As shown in Ace's reworking, the "bump" on the upper right qudrant doesn't seem to add much to me, so it seems good to remove it. Just a suggestion about the siding in the left: It is possible that keeping it curved as Sinclair has shown may give you space for one more car, and that can be valuable if your friend will enjoy operations. The trade-off is it bisects the space evenly but that's not necessarily bad for scenery.
Tomlinson Run Railroad
