It all looks great but one comment is your focus seems to be more toward your ears than your eyeballs.
Quick glance at your room shows me a wall with a tv yet the wall seems of a size and location that would easily support true Theater in the Home sized screen.
Have you considered stepping up from watching television to being "at the movies"?? You can install a pull down screen for Theater experience to go along with all that audio and Theater seating and then just watch television when you care to.
No TV today can deliver HT so give it a thought - your room would easily support the upgrade and, take my word, you will not be sorry!