I agree - white.

See how your curtain rods are not just under the semicircle window top? It is disconcerting to have them 2" too high - they need to be lowered.

I agree with the color of your rug being good - So lose the brown sheer curtains that are not working- simple white sheers will work.

Create interest in the room with art and pillows and plants.

Improve on accessories on mantle.

thank you very much, am looking for paint, so you mean white paint? not looking to build a stone wall on top, thanks again

Yes, the same color white as your mantle. But not semi gloss or gloss -

Flat or Matte finish - no shine for the wall above FP.

Same as fireplace, you're cutting the fireplace in half if you paint it a different color and ruins the asthetic.