Hi Poppafrog! First, welcome to BYC!
I really like your ideas. It looks cool ... however... and don't take this as mean... my dogs would be in that coop in nothing flat. I have two boxers. They would destroy the plastic siding (especially if they can SEE the chickens), and would have absolutely no trouble getting through the chicken wire.
I've seen what can happen. I had racoons get in one year and killed six of my eight girls. They didn't even drag them off. Just killed them and left. Horrific mess. The two that survived, never recovered from the stress. They both died within three months.
As you will read here the only thing chicken wire is good for is keeping your birds in... not keeping preds out. Read some of the posts in here and the predator section. Ask some questions. Get some answers.
Protect your birds. Once you think they're safe, double that. You may not think you have predators, but you do. They will come to you now that you have a food source. Also, neighborhood dogs are some of the worst predators... especially when they run at night.
I really don't want to sound like a downer, especially after seeing your hard work. Sorry.
But you did ask...
E/