Actually I wanted waist darts that open to the top for my new dress, but somehow (might be the fabric) I didn’t like that at all. So I have redesigned it. Now I just have to deal with the resulting difference in length. Will probably add a waistband.
Here is my result after the redesign, the pinned line is the new (straight) waist line:
from Instagram: https://www.instagram.com/p/CL8_ldrhAfW/