Well, the gear is fine. I'd do a few things with the room, though. Bare walls and floor, and all that stuff between the speakers probably is not ideal.
As John says, if you can pull the mains forward a bit that might help. Otherwise consider getting a plasma screen and either shifting the rack elsewhere or getting a smaller one. A rug on the floor might help. Wall treatments are good, if your spousal unit is agreeable. I use about 80 sf of acoustic foam, and some oriental rugs on the wall, with a lot of heavy cotton batting behind them - of course, what you do depends on your room acoustics issues. But looking at your room it's probably a bit bright.
Nice sub.