The most obvious issue is reflectivity. The centre (!) is all the way back against the wall, it should be at the very front of the stand it is sitting on. The speakers are shoved into corners, so the first thing they do is push sound against the walls, smearing the sound. Then there is the room itself, all hard surfaces. In effect, it's a giant echo chamber.
So, if you really want to get serious about improving the sound, not only will you upgrade the centre channel and change the position of the speakers by pulling them forward (the face of the left speaker should be forward of the left wall and the right speaker should be pulled out an equivalent distance and toed inwards slightly), but you will also get yourself some room treatments. You can start with an area rug, placed between the speakers and the listening position. Secondarily, some cloth throw pillows on the leather couch. Heavy curtains or Roman shades made of heavy material over the windows would be a great addition. That glass table is also an audio nightmare (beautiful table, BTW, I'd be inclined to keep it, despite it's negative affect on the sound).
Lastly, I think you will have to get some real room treatments to reduce the echo chamber effect. Consult a company like GIK Acoustics (or similar) to get recommendations specifically for that room. These treatments can be disguised as any piece of art you wish, so a good way to get the better half involved. Design services are free ....
It's a VIRTUAL channel unless stated otherwise.
Last edited by RayGuy; 07-16-2019 at 11:05 AM.