First off, that rug is AWESOME.
Continuing on...I would suggest moving your desk/mixing set up - likely to the wall on the opposite side of the drumset (so the speakers are playing at the drums). More on positioning here: Monitor Positioning in Room Setup - GIK Acoustics
I also would recommend checking out some real bass traps instead of foam. Foam will only dampen the higher frequencies but won't affect low frequencies in the room. If you'd like to see a comparison between foam bass traps and our GIK 244 bass traps, check out this test: Comparing Foam to GIK 244 Bass Traps
I would recommend treating the room for monitoring via catching early reflections with broadband panels and using thick absorbers in the corners, while spot treating around the drumset. I would likely experiment with placement around the drumset to be sure you're getting the best recordings!