Gaylene & Suz - you are very right in that this is type of item that is impossible to showcase in a static picture. It's hard to try and explain to someone how an article feels when you stride and it caresses your legs just ever so, or that the drape of a neckline make you feel alluring but not sleazy - that sort of thing. I can't say enough about how the fabric feels against my skin, how it doesn't sling to a darned thing and how nicely a jacket over top glides on without any bunching.
Deborah - LOL! I knew you'd be ALL OVER this dress! It is definitely your type of style and it's actually your inspirational outfits and stunning displays of draping that made me want to try this dress in the first place - so thank you I will PM you later with links and info on the dress.
It sounds like most of you feel the medium is fine to wear now and I'm starting to think you are right. Although it feels a bit self conscious in the tummy area, the rest of the medium fits better - the arms, the length and the tapering at the bottom in particular. Plus the medium shows the overall shape of the dress a bit better, although that's impossible to tell in the pictures due to it being black.
Again, thank you all so much for your feedback. It's always so helpful for me to see something through someone else's eyes.