If they are going to keep the current camp system as it is, then the camp background should change to at least look like whatever area/zone you're currently in.

The camp always looking the same is really weird, but I think it should be restricted outside of certain safe zones. But then that is an issue because you can just fast travel to a safe zone and camp and then go back, like how it is restricted with Ethel's house.

You can still travel away and then use the fast travel back outside her house and go back in. It takes a few more minutes, but you can get around the restriction. Fast travel should also be eliminated unless you get back to one of those rune spots.