I agree with nothing that is just grey and white.

I suggest that you use painter's tape to decide on a size for whatever art you might choose. It seems that the space calls for something large. This could be art, a quilt, a weaving, or a poster. Some of these might be placeholders until yo someday find the piece that speaks to you.

I love a lot of color in my living room. Look into a local artist or art gallery. Or get on art.com. There are a lot of options there. Buy a print and get it framed locally with plexiglass (safer and easier to hang).

I’d want something with a bit more height - i think the tapestries from anthropologie are fun and a total steal for the scale

Add some wall art with color, but also some accessories that help pull the colors down into the seating area. Color will help give the space some warmth.

depends on the budget by ETSY.com has a lot of great Wabi Sabi art pieces

large enough for your wall.

I like something like this

https://arttideart.com/products/textured-art-zf006?variant=49650937102649&pins_campaign_id=626756040327&utm_campaign=626756040327&utm_medium=PaidSocial&utm_source=Pinterest&utm_content=2680086838675&pp=0&epik=dj0yJnU9YjRjMDNoX1VLSmY0RFFaOGVIQ0NMZjhUOHJnMHhnaVomcD0xJm49dTRjZlFnejVrY0o5QTMwLTVLYUVKZyZ0PUFBQUFBR29CUWNJ

Maybe trees for their irregular shapes and a color other than gray (green)? Looks like you're blocking the view out the lower windows anyway.

Art wouldn't have to be huge (Claude notwithstanding). This is a black and white photograph of the Louvre pyramid. I like the way the pyramid echoes the diagonals of the rug.

Introduce a bit of another color?

Go for drama?

Do you or your husband have any interests?

The grey and white is too much grey for your space. I agree with Claude on that.

Speaking of Claude- you could look at large prints/posters; and coincidentally, Claude Monet comes to my mind.

You do not need gigantic art. You see by the visuals that @simplynatural posted, there is a wide range, as far as sizes.

Etsy.com is a good resource for all kinds of art.

Do not look for art to ”match” the room. Yes, art ‘can‘ complement the colors and style/aesthetic of a space. But it can also just stand on its own. Art is art.

My wish for you is that you find some type of art that inspires you to put it on your wall. Not just something to fill the space.

Right now the only real color you have in the room is the blue and yellow green in the windows. An all gray and white color scheme is pretty monotonous and will become more so as time goes on. So, as others have suggested, find wall art that inspires you and looks good, of course, in your room. Then use it to address the lack of color in the rest of the room. Since your furnishing are rather bland will suggest instead of dark and dramatic that you go in the direction of bright and cheery for your art.

I have no idea about Claude but IMO you need a vertical piece not horizontal and something not so insipid but more exciting . Use that to add color to the space too. You buy art becuse you love it not on someone elses idea of what you should get. I never tell my clients what art to choose .

Something OTHER than gray & white. You already have more than enough of that, no offense. There are tons of sources online for art, what colors other than gray &/white , do you like? Your room needs color, interest, via different sofa pillows, accessories & perhaps a few live plants or trees to bring life to the room, as well as art that you love.

Yes to large-ish and vertical, no to grey and white or anything too pallid.

Proportions and placing vertically are key to creating a balanced wall.

The art’s design is as important as the color combination. Choose what resonates with you and your husband and tie in with impactful coordinated cushions.

Yes, I would absolutely bring in some color. Adding more gray and white at this point will likely make the room feel flat and one-dimensional, especially with such a large wall to fill. Right now, your living room needs a focal point that adds warmth, depth, and visual interest.

Because you have high ceilings and beautiful natural light streaming in from those upper windows, I'd lean toward a large vertical artwork featuring deep navy or sapphire blues paired with rich ochre, mustard, or warm golden tones. Those deeper blues will create a sophisticated contrast against the gray sofas, while the warmer accents will catch the daylight and keep the space from feeling cold or overly monochromatic.

If possible, look for a piece with subtle texture or gold-leaf details. The way those metallic elements reflect natural light throughout the day can completely transform the feel of the room. Instead of the wall fading into the background, the artwork becomes a strong visual anchor that ties the entire space together and gives it a more elevated, designer-finished look.