Here's my rough attempt at the quieter/calmer style you mentioned. You could consider doing a room size natural fiber rug and layer it with a more colorful area rug in the seating area. This one is from One Kings Lane but may be available elsewhere.

Another fan of the poly rugs. We bought our first ones when the kids were little and we had huge dogs and put them in the foyer, laundry room and front hall. Those things lasted for years until we got a puppy who decided that the carpet fringe was delicious and then went on to chew the rugs. We replaced them with newer ones and when we moved gave them to the kids - they must be 20 years old by now. We bought them at Macy's, Orvis and even the big box stores. I love the look of jute and sisal but would never buy them, they do absorb dirt, crumbs and liquid and some are not comfortable when bare foot. So if you find some please report back.

I like deeper colors for this room. You have great lighting.. https://www.rugsusa.com/rugsusa/rugs/rugs-usa-iris-fading-oriental-medallion/Navy/200KKCB26A-P.html As mentioned, look for art you love. It does not have to match anything. Go for something interesting to look at, not wall filler.

WELLLLLLL, APOLOGIES. But if a client asked me with only that pic? " Sorry, we can do better. Too meh. and jmho. " UNLESS................perhaps show something I don't have to dig for. It is better, up close to the weave. Just remember to stand back.....Below is Everdebz link from her post above. Maybe it is and maybe it isn't https://www.rugstudio.com/dalyn-bondi-bd1-kaleidoscope-area-rug.aspx?utm_source=froogle&utm_medium=CPC&utm_campaign=shopping&ref=frg&ne_ppc_id=1760&gclid=Cj0KCQjw_fiLBhDOARIsAF4khR07VwhOU3jIVTxTNMFdyH6gkyirUX3TjDyD_STiZqwnn7Hviz8YGr8aAhuQEALw_wcB