Perspectives of Model to Date

Now that I have added a table and the shelving units into my model, I thought it would be good to take a few perspectives to see if anything stands out that urgently needs to be changed. The only thing I could think of at the moment is putting a railing around the top of each 'dugout' for safety reasons. I would presume that it would be in the building code or something, so that is my next task..