The wall opposite the couch could hold the TV - would need to mount it on the wall and that would take a while as we would need to get someone in to do it (I love my husband but he's not the handiest). Where the photo was taken is a three seat couch, so couches are in an L shape.

I saw the neutral tones with beige/peach accents and thought -- color! I did a screen capture and put in my painting, Child of Eden, because the greens interacted so well with the room. (Not sure about the size ratio -- the framed picture is 30 x 26.) As a fine artist, I tell my clients -- when you choose artwork for your home, the most important thing to look for is what you like, and what makes you smile -- and it will fit into any color scheme you choose, simply because you love it. When we start over-focusing on matching the color scheme, we risk buying something for the color scheme first, and our liking it second. Both you, and the artwork in your home, deserve better than that.

Art gallery wall definitely - either one very large dramatic artwork or a selection of black and white prints - could be some of your own photos enlarged, printed in black and white and framed in black. But you also need something under the stairs on the floor. I liked the plant suggestion, or perhaps a large basket or some sort of natural material holdall. How about a stand/table for umbrellas, bags etc?

My inclination is something with colour and with a connection to elements already in the room. A dark timber frame and a deep coloured strong image, wide enough to link across the chairs and not seem squeezed between them. Here's a random red-toned image from the internet that I have stretched into a dark wood frame. The hues link to the cushions without matching tightly and add richness and warmth.