For the first ones, where the fabric had some heft (lightweight crepe ) I took the pattern for a shaped sheath, which is effectively a dress block, and set it at a slight angle, adding half an inch to the Cf. Daughter is D cup, so I slashed from hem to apex and closed only part of the front bust dart, opening up the middle part of the front pattern. I drew side seams below the bust dart which flared out slightly. Then I added an equivalent amount into the back pattern in three places, CB, middle by slashing, side seam by eyeballing. For the floaty silky fabric one I closed off the whole of the bust dart and increased the flare in the other two places. None of the fabric I used for these was super precious, so I didn’t bother with toiles. That’s the basic shapes, so necklines, sleeve arrangements and details differed. Being basically without any fitting and just hanging from the shoulders these dresses were about the quickest I’ve ever made, great stash busters.