Nice looking room, Energy has some nice speakers but I believe you would get an improvement from Axiom. One thing to be aware of though, the Axiom towers will most likely need to be further out from the wall as they're rear ported.
How does the center sound and have you played with the location at all? I've read a few times about moving it to the front of the cabinet to alleviate reflections or coloration.
In your current set up that may look funny, but if you get the Axioms you would need to move the towers forward as well so the center wouldn't be looking too far forward from the side view
