I love the drama of your tile wall...............just not crazy about all the stuff you have placed in front of it. Have you allowed for any electrical and cable hook ups so you can mount the TV directly to the tile?

Not sure I'd mount the TV to the tile. Seems a shame to ruin the tile that way. Instead, consider a taller media console that will raise your TV a little higher than your fireplace. The cluttered look is all the little pictures surrounding the TV. Consider something along these lines. I'd also select one in a warmer wood tone to break up all the gray.

I like the above idea.

One of my favorite ways to add color is through greenery. A hanging planter or a taller modern plant stand in the corner would be nice (with a bright pot/stand or just allow the plant to add some green to the room).

I also love the tile. I'd replace everything under the TV and fireplace now with a single long console that spans the whole wall.