Its a matter of preference. I have always personally preferred a more diffuse surround environment. I would angle them strait ahead. I would also move the sides forward a bit, but that window seems to be in the way. Don't worry about the reclining position. The sides, back and ceiling should...
Video was very helpful. I would shift everything forward a bit. That will help you come out a bit from the rear wall and the beam in front of you. I would also experiment with leveling your rear channel speakers at their current location. They are currently angled down directly at you. I...