Hey, big improvements! If you have friends over to watch movies then I hope you have them take their tennis shoes off before hopping on your bed with their bowl of popcorn
You asked for input and I have a creative suggestion. You mentioned some sort of cloth mural cover for the screen, so it made me think about how something like that would look in the current room. My first thought was that it would be nice to tie everything together somehow, so it's not just a speaker here, a speaker there, a screen here, a pillow there etc. Here is a quick mock up:
The gray border on the back wall, rising through to the ceiling and shifting to a brighter gray matching the screen, and then returning to the current ceiling color would look very nice in that room. You could maybe border the entire circumference of the ceiling in this way, or just the wall with the screen. You could use paint, or a tightly woven cloth material that wouldn't show the ceiling color through the material, and would be tight enough not to catch as much dust over time.
I think something like this would look sweet!
BTW, I like your dream catchers. My mother, who is a Mik Maq native from a reservation in eastern Canada, would approve
Sean.