This is the dress I am basing it on- beautiful draping with a retro feel. I have marked on bust, waist and hip lines to give me an idea of where to split the basic block I have drafted for her.
This is the bodice section- I will cut this in fabric today and see how it works, as paper doesn't give a true representation of the drapes.
This is the mid-section. I have included photos of how to 'slash and spread', for those of you interested in pattern adaptation. I have marked on where I want the extra fabric (across the whole panel) and the spread it evenly, sticking it down onto a paper backing (see next photo).