This design was inspired by the ridges of a scalloped seashell. After playing around with the blocks, I ended up liking the layout with the white star in the center.
I used freezer paper to do the piecing.
The outer quilting was done with the intent to intersect the lines from the striped pieces into plaid corners. I hoped the parabolic curves in the center would give the effect that the inner part of the white star is raised.