Miss Fancy Hair Dress.
My envelop had 8-16, but I there is a 16-24 available as well. I cut mostly 12, going to 10 at the bust and 14 at the waist. I only added a little more ease at the waist and took 2" out of its length.
I have 2 now so I don't know if I will sew it again. I have so many other patterns I want to try. On the other hand I want to try some color blocking for it as well. It is not a hard dress if you find the right fit.The pattern does have the final measurements so it should not be hard to decide what size you need. It was a rather fast dress for me the second time around. With the fabric cut 2 days before sewing, I was able to finish it in one of my free days without sweating to hard and taking rather long breaks to play with my son.