Yeah, kind of a bad room. I'd go with an ADP on the RR at 45 degrees to the corner in that setup, or stand mount the Atoms, one in the corner, the other would be sort of free standing on the left, both facing toward the center of the room.
If you wall mounted the Atoms, you could put one in the corner and point it toward the center of the room, and the LR on the wall where you have it, pointed a little more toward the listener, but even with calibration, it is probably going to sound much more diffused on the left.