N Scale shelf above my workbench

Here is my attempt at constructing a three in one N scale shelf. This shelf will act as a brake in track, a display shelf and a eye candy diorama, above my work bench. It can comfortably hold 24 six axle diesels. It will be fitted with a control system that allows the loco/s to go back and forth on both tracks. I'm currently adding the rock outcropping details and couldn't help throwing a couple, well some locos on it. By weekend I will start the application of the base coat so I can begin the scenery detailing. Comments please.