Room treatment

I have a number of ideas.  The space between the speakers could benefit from low profile diffusors.  GIK makes panels with diffusor plats which can be white, or covered in an image of your choice.  The ceiling is often overlooked and absolutely important.  You can overcompensate a little here by using 4" thick ceiling panels. 

Measure your bass.  See how much you need to tame excess room modes.  You can tame them with a combination of soffit traps and EQ. 

The wall with the skull could probably really benefit from short panels.  You can somewhat try this out yourself with some blankets and pillows. See if you like the results.

Another option in your case is to increase the toe-in of your speakers so they fire towards the center, reducing side wall bounce. 

@fire_water 

I would go with a someone who offers full consultation and products that are not only aesthetically pleasing but also offers measurable results. Every room is different and should be treated acoustically as such. Take pictures and measurements of your room and start making calls to vendor’s on your list.

As far as being costly, think of it as long term investment. It’s one of those upgrades that outlasts any single component swap. Gear may come and go, but a well-treated room gives you a foundation to hear your system at its best, and the enjoyment just compounds over time.  

Check out this vendor as well..https://vicoustic.com/hifi-and-home-cinema

@lalitk 

"Gear may come and go, but a well-treated room gives you a foundation to hear your system at its best, and the enjoyment just compounds over time" 

Thank you once again for more "sound advise", see what I did here lol. I totally forgot about Vicoustics and I'll look them up again. 

Beautiful system and room. 

Yes, huge opportunities for acoustic improvements.... I agree with @erik_squires and @lalitk. Depending on whether you want to learn / do it yourself... which most of us do. This really affords us a great opportunity to learn about sound and music... train our ears. But having a professional, might be great to have someone with knowledge of all sorts of treatment types that might be more aesthetically pleasing.

Looking at your system/room. The first thing I'd try is moving the speakers to the long wall (under the skull) That wall is wide and open. They're crowded into the corners now.The glass isn't good for either speaker and especially the right speaker is cramped and surrounded by glass windows.This is the most reflective way you could set them up. Not good.