Not a very gray sofa when compared to the other colors in the room.

Beverly, I do have very blue cold artwork but thought I'd look for something warmer. Fo you recommend warm tones with the blue in artwork?

I think this would look pretty in your room behind the sofa, complimenting both your pillows and your rug, and I would pair it with an asian lacquer tray on your ottoman (just one example below, you can find many in red or gold as well)

https://www.chairish.com/product/4029449/japanese-hisashi-otsuka-framed-red-kabuki-lion-dancer-signed-print

https://www.chairish.com/product/10126037/mid-century-era-japanese-hand-painted-lacquer-serving-tray-with-bird-rooster-motif

The framed print is 33 inches wide, and if you didn't think it was wide enough, you could easily re-frame it to be much larger (adding a colored or fabric mat) or find other pieces of complimentary wall decor to fill out the look.

This is 26" wide

https://www.chairish.com/product/10181305/1960s-hisashi-otsuka-lady-murasaki-revisited-limited-edition-mixed-media-print

don't know if you have room for both prints since I don't know your sofa length but either of them would look nice, and they would also look nice together I think

if you were to get either of the prints it would be fun to replace the white throw on the sofa with a hot pink or orange throw

https://www.amazon.com/Nextchange-Blanket-Lightweight-Flannel-Blankets/dp/B0C8CVP99J?th=1

I think the suggestions of everyone else are way too modern for the space which is traditonal. I would pick up on the blues browns and beige tones in the room.

https://www.wayfair.com/Red-Barrel-Studio%C2%AE--Navy-and-Linen-Leaves-IIPremium-Framed-Canvas-Ready-To-Hang-X116208525-L1318-K~W005197414.html?refid=GX685467027277-W005197414_1673227570_1673227582&device=c&ptid=454329952732&network=g&targetid=pla-454329952732&channel=GooglePLA&ireid=146139412&fdid=1817&PiID%5B%5D=1673227570&PiID%5B%5D=1673227582&gad_source=1&gclid=Cj0KCQiAv8SsBhC7ARIsALIkVT1PRq96m5em0Xe3DkIRAyl7X2e6IDEO7dn71aoAne6YI7wVSYX3j3oaAp-1EALw_wcB&piid=1673227582%2C1673227581

https://www.icanvas.com/canvas-print/cool-grey-horizon-i-jgo25?gad_source=1&gclid=Cj0KCQiAv8SsBhC7ARIsALIkVT0RZCVhQYjxowTSeCxEEC0VGIph8aWEinZf6VDkKYwU095ItNBThEAaAgDREALw_wcB#1PC6-60x40

https://www.etsy.com/listing/1464154693/vintage-framed-canvas-art-framed-vintage?gpla=1&gao=1&&utm_source=google&utm_medium=cpc&utm_campaign=shopping_us_ps-a-home_and_living-home_decor-wall_decor-other&utm_custom1=k_Cj0KCQiAv8SsBhC7ARIsALIkVT1wgXbX4TwI-I0CC6U95Vbp7Tuthvryttr8QlkY_OsBi2Gzp9ZUqvcaAkV9EALw_wcB_k&utm_content=go_12567673668_122422048791_507253757890_aud-2007167693669:pla-307501513391_c__1464154693_122951779&utm_custom2=12567673668&gad_source=1&gclid=Cj0KCQiAv8SsBhC7ARIsALIkVT1wgXbX4TwI-I0CC6U95Vbp7Tuthvryttr8QlkY_OsBi2Gzp9ZUqvcaAkV9EALw_wcB

I'm showing a large canvas as artwork suggestion with some of the blue from your area rug.

I'm also suggesting other items to accessorize the room while also introducing more of the blue...

You might want to try some artwork with some blue, brown, grey and white in it to help incorporate all of the colors you have. Notice how the artwork used helps to bring everything together in the rooms here:

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It looks like you'll want some artwork that pulls together all the colors you currently have. So art with blue, white, brown, and grey in it would be best. Art is very personal though, so maybe try looking online at some art with the above colors in it. Take a second to look at the artwork in the images below and how they work with the colors already in the room.

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I’d do an asymmetrical gallery wall with various sizes of wood and antique frames with different white and offwhite mats. Bring some more warmth to

the area. Then include either artwork in same color scheme (blues, browns, b&w) or b&w family photos.