I do not know the answers to any of those questions, sorry. I would like to say that those are great pictures and a good looking chameleon. As well as the set-up.
Hehe, I doubt it since that's the male. Really like the sticks in the setup with all the moss and such growing on them. Probably wont see any breeding for another 2-3 mobths or so.
Expect them to hang out in one area for the first 2-3 weeks. Given time, they will start to explore the rest of the tank. Its not uncommon for them to "hang out" with one another. Totally speculation/theory but I think females like to roost together and the male will always be close to the females for obvious reasons.