The switches in the back crossover are going to be tough to get to, I would move them to the front. I would add a 031 loop to the right side of the yard to allow run through trains and reduce back-up moves.
I would put a removable bridge across the Electric Panel area and have a yard or industrial area along the left wall, maybe even a reverse loop in the left front corner.
A second level would add interest and reduce the train chasing its (cabbose) tail look.
