Hi David, I understand some of your points. I facepalmed about the 'platform height'. That makes complete sense, but now I have to ponder more routering.

I thought the curtains were the walls that joined the bastions?

The parapets are what they are. The kit is the modular fort from Brigade. I have been planning on filling the gunports on the curtains.

I've been planning grass on the curtains, much like the diorama in the earlier picture.