I started by making a bunch of yo-yos using this tutorial.
After I made a bunch, I cut out a 12" x 12" square of the original fabric (which looks so close to the one in the picture!!). I sewed all of my yo-yos to the pillow.
Then sewed some more... my hands hurt!
Finished the back of the pillow with an envelope closure and new Spring pillow! It even matches my flowers!