Love the pattern!!
I was confused on the brioche part bc I’ve only knit it once years ago. But it took me to the next brioche section to realize what I did wrong.

Also, I have knit the 21” and later saw the note to go down a size or 2. I was going tear it out but decided it was too pretty and the size would be fine so I closed it early with a basic quick close and I was running out of yarn. It still turned out great fit-wise.

Once done It turned out beautiful and I love the different techniques.
I will definitely give this another try. I enjoyed it a lot.