Also need something to replace the greenery on the table.

Very pretty!

Those pillows are so pretty! Consider painting the slats on the rocker a soft color from the pillow, so they can stand out.

My first thought would be a rug to help keep the eye at that level, but need a panoramic picture since it looks like a large porch.

Maybe larger cushions ... like the kind that cover the back and the seat.

I would get a small carpet and paint the chairs.

Agree that size & shape pillow isn’t really made to give much comfort in rockers. I’d also consider a solid color.