Ozzy, your room dimensions are similar to mine, but I have 10 foot ceiling. However, Bob designed the ALS to work with 8 foot ceiling so that it may be of benefit to you. Good to see you have the four corners of the room treated. I've found placing absorption panels in front of and slightly behind the speakers along the side walls (to absorb some of the sound from the side firing drivers) to be beneficial reducing some of the huge amount of spacial cues these speakers can generate. It focuses and gives more solidity to the images, especially vocals. Also having absorption panel in the center of your front wall behind the speakers will improve image focus and solidity. But you'll have to experiment. My room is a combination of aborption and diffusion panels. Also placing the speakers out into the room as much as you can, really helps the sound stage. I have mine out about 10 feet into the room and 3 feet away from the side walls.
Obviously, the Ravens are a great match for the ALS.