Some mock up

I would actually recommend different arrangements on each side, rather than matching decor. Because the right side of your wall is wider, trying to make both sides identical could look forced.

One important detail: I would keep the TV as the visual anchor and avoid putting too much artwork too close to it.

My suggestion: Use real family photographs mixed with a few neutral landscape prints. That will make the room feel collected, personal, and sophisticated rather than like a showroom.

Keep the left arrangement a little simpler than shown, and let the wider right side have the more substantial gallery. I think that will look especially beautiful in your room.