I would remove the shelves, they are too small to have any impact on that wall. Your painting might be a little high as well. Add some colorful pillows to the sofa to draw attention to that area. Where is your focal point in this room? Is there a fireplace? I don’t think you necessarily need more art on that wall.

I would remove the shelves. Move the picture so that it is centered on the panel and purchase another picture for the other panel.

The fireplace is opposite this wall- that's what the couch is facing. One thing I didn't mention is that I want to place my rear surround sound speakers behind the couch. Thatis what the shelves were for originally.

If you can't find anything to work with what's there now, and it's only one painting, move the painting to elsewhere.

Do you love the painting, or do you have it because it " matches" the walls/sofa? If you do not love it you might want to look for something more colorful.

Thank you everyone! I do have another place I can move the canvas. After seeing pics (How did y'all do that!) I think I like celerygirl's suggestion best, with 16x20 frames. Putting a piece in each panel is too busy for my taste and the intercom panel gets in the way anyway.