Change it and get one with more color in it. Everything's looking too monotone. Something with a deep red or blue would be nice to brighten it up.

I would definitely use a rug. The existing one is fine, but a different color would be best.

Thank you!!! So torn

Also would love to paint the walls gray!

I love the wall color. Maybe you need new cushion color on the chair to pop with a new rug, if you choose one? Let the walls be your screen. Let the smaller items speak up. You won't get so weary of the wall color than. Maybe a color like the candle on your table with some soft green & blues and other muted real colors, to bring some of Mother Nature's colors, in your room of beautiful wood tones?

I think your idea of using gray on the walls would start the process of updating very nicely. You will want to consider adding more contrast to the look whether it's with pops of color or just whites & creams to bring out the richness of your wood dining set.