Nice job on the coop! The two biggest things that I did on mine and have never regreted: 1) putting in a poop board that I cover with PDZ and scoop each morning, and 2) framing in the area under the poop board and down to the floor as a brooder/integration pen with doors, etc. I have lights under it that I can control as well as a camera for remote viewing. It's been a great general purpose area if you even need to separate from the flock but want to keep them visible to the flock.
Also, to add, if I'm not needing to keep anything separated at the time, I just leave the doors open, so the birds can still use the full floor space under there. The picture doesn't quite show it, but the doors interleve together when open to take up minimal space.