@tattooedtrackman first if all, awesome system! Speakers might be a bit too close to each other but that’s just by looking at pictures…
As to the acoustic treatment…take few good pictures of your room and submit for a free advice on GIK Acoustics website. I just recently implemented some room treatments from them based on their recommendation (Mike Judge was the person I worked with).
Another option is to download free REW software, get a mic and take measurements. This would also be useful to send to GIK. I didn’t do it and am dialing it all in by ear. Most impactful were bass traps and treating first reflection points in the side walls. I respectfully disagree with @ghdprenticehere on treating the wall behind speakers - the sound radiates out into the room. Going back at the front wall you mostly have bass that accumulates in the corners. It’s all pretty complicated with cancelling waves, etc. I’m just speaking from experience here…I’m in no way an expert in room acoustics…still futzing around with panels in my room.
Good luck!