I like it. I often use that wave pattern. While I don't think they have to be PERFECT to do the job, I find that it helps to draw it with a finger or a pen a few times before I start the quilting.
Thanks for the tip! I'm usually pretty hard on myself, but quilting has taught me to let some things go, lol. At first I wasn't thrilled with a couple of the waves, but then I thought it kind of looked like a Maurice Sendak type of illustration, so I let it be and decided to accept it as it was. Next time, though, I'll do the drawing thing. My main impedance to getting the shape I wanted sometimes was the constraint of my sewing machine. It's just a standard Singer 7467, so moving the fabric was sometimes difficult, especially in the center of the quilt. And once my foot / hand coordination was off, it was easy to get into trouble! I had a much easier time with the "wind" since I could move the quilt in the smaller dimension.
Lessons for next time!