Your bird pillow is fighting with your lovely persian carpet. Perhaps instead, find a pillow or pillows the color of your settee.

I think I would get rid of all three pillows and add two or three that complement the persian carpet.

Try the grey ones on the wing backs with the yellows - although lumbar pillows always look nicer on wing backs perhaps you can have them reworked to lumbar.... Put the bird pillow on the red chair. Get textured off white for the sofa.

This will pull the grey color through the room ...additionally a grey object on the console.

And something yellow on the mantel.

What a lovely room! Everything is very nice. Every color you have used with your furnishings appears to be in the rug but nothing is tying it all together. I would remove all the pillows and chose a color from the rug and have pillows made for the sofa from a fabric that has the upholstery fabric colors. I do think that the suggestion of the color from the settee is a good choice as it is in the rug. You can reuse the blue pillows but maybe add a gimp or fringe that has all the colors in it. Use the bird pillow in another room. If you are planning drapes you may want to do that first before choosing the pillow fabrics. Great start!