Lace stitches in circular shawl

I'm looking for lace figures to use in a circular shawl.

I'm attempting to knit a circular shawl based on the swirl pattern by Derya Davenport. It's essentially increasing 8 stitches in every two rows. So I have divided the circle in 8 sections and I have increased at the second stitch of each section. Each section is vaguely triangular.

However all of the lace figures I can find are more rectangular and I can't find things that take into account the increases.

Does anyone have any suggestions or resources for adding patterns to a circular project?