OK, I'm reading your thread and I'm thinking, I've seen these photos before and I know I've posted comments about the setup previously, but I don't see my comments. So evidence would suggest that I did not post comments and for that, I apologize for missing such a nice system.
Now, about the system. Man, you've done good! Clean is an understatement. Your system looks as if it was configured with surgical precision. The Oppo BDP-83 and the Emotiva XPA-3 are strong additions to the ensemble.
Now, about the Boston tower positioning......
Moving the towers out some was a good move. Your soundstage (wider) and imaging (accuracy) in theory, should have improved.
Judging by the photo below, showing the listening position, if you haven't already, try moving them forward amybe 5 to 6 inches and pointing the towers in approximately 5 to 7 degrees. See if you can detect a change in the imaging.
Anyway, the room looks great and the system is impressive.