Yep... spiral came to mind for me too.

I also immediately thought of a spiral because the block already pulls you spiralling into its center. The quilt looks very nice, can't wait to see how it turns out finished!

I would spiral the quilting on this block

How about an arc on each of the pieces?
I' thinking it would round out and soften the angles to make it more like petals.

Nice quilt!

One big spiral down the middle of the pieces!

Beautiful!!

beautiful,, guess you'll be doing a spiral. hehe

Love your color choices and I agree with the spiral suggestions.