Six hours, no lunch and several re-plays of Marina and the Diamonds later....
...I have a new dress!
This is the sister-dress to the Daisy dress. It's the same pattern with a neckline variation.
This is the pattern... the version I made is the white/floral version on the left
Alterations: I left the waist ties off because they just annoy me.
I extended the front yoke to make it deeper because, in the design photo, it just looks like a strip of fabric, and slightly strangulatory. I wanted it to look like it was actually part of the dress.
Dropping it seemed to affect the neckline, so I had to add a couple of little tucks to the neckline, under the yoke. You can sort of see them here.
I also dropped the waist waaaay down in front, giving it a curve. This is more flattering than the Daisy Dress but still not awesome. I think gathered skirts and me Just Don't Go Together.