The only practical place I see is the wall on the right side of the photo. If you put it on the wall opposite the windows you'll have huge glare issues.

But without measurements, it's hard to tell how much room you have. And what is that door to the left of the windows?

Do you watch a lot of tv and do you want it to be the focal point of the room?

What are the white furnishings in the schematic?

Depending on what those are, I would put it in either of the places below. Not an artist, so it’s the best I can do.

Flat wall mount?

Second placement