I finished testing "Tuuli" by Zoya Matyushenko a few days ago but didn't get around to blocking it until today.
With a 1.75mm hook it came out to about 11.5-inches in diameter. I used Alize Miss Batik thread in the color #3716.
The several rounds of popcorn stitches near the center were frustrating to get through, but not difficult. I love popcorn stitches, and I love how the center looks with them, but keep in mind those rounds might take a little longer to complete.
The colors in this thread are always so stunning. They are a little difficult to photograph, but with some tweaking I was able to get them evened out.
If you are interested in this piece or any of the other pieces I've made, you can visit my shop.