I would suggest replacing all of the plants on the mantle with just a few different items.

I think the problem is there's too much stuff going on. Editing is important. Definitely, remove the plants off the mantle. it's hard to give other advice since panoramic pictures aren't great.

Declutter room please from plants and extra furniture.

The plants need a more casual setting -- they don't go with that splendiferous mirror. They'd look great on a windowsill somewhere.

The rust couch draws too much attention to itself; you need to pick up the colour on the other side of the room. You could find a rust-red container (nothing countrified) for the plant behind the couch on the right, for instance. When the plants are gone, you might use rust-red candles, perhaps in crystal candle sticks, on each side of the mirror. Nothing dramatic.

The other big thing is that I think you are falling uncomfortably between two style stools. The couches and the mirror and the room itself say formal, traditional, glamorous. The plain picture frames, the blinds and the lack of drapes say casual and modern. I would suggest getting more ornate frames for the art and adding drapes, perhaps in a traditional cream fabric -- faux silk? I think you might get away with keeping the blinds if they are not the star act of the window show. I'm sure they are practical.

Great work as usual, Celerygirl. Isn't that mirror gorgeous when you can actually see it?

What would you like your living room to say? Gentlemen's quarters (leather tufted sofa seems to say that)? Formal (chandelier and ornate fireplace)? Which color do do you want to keep? When you decide, have a pro come out and give you advice on the paint color for the walls as well as how to style the mantel.

At the moment, it seems like the sofas are quite big and overwhelming for the space. Maybe it's the photo. Also, there appear to be about 5 casegoods/side tables, etc. Those need to be pared down.