Below is a photo of the dress without adjustments or buttons (and a critical dog in the background).
Fixed with buttons below!
Pattern: Sureau from Deer & Doe
Fabric: Wax printed Cotton Stars from Vlisco
Size & Cutting: Bodice, 44 + a small FBA based on this tutorial. Waist and skirt cut out at 44, graded to 46 hips. 5 inches added to skirt length. (It ended up a little big, 42 bodice and 44 straight through might work best.)
Most seams are flat felled. The cotton is a little stiff so the gathers look more puffy than I'd like. My main problem was the gapey neckline but as I said, I fixed the shoulder seams and marked the pattern piece for the future.