For $19, you have a winner. I was wondering how the first dress might look with hose and shoes, and I'm glad your mother agreed about the lovely colour.
I feel the same as you about fit and flare dresses. I just don't think they flatter me. I'm not sure why. Theoretically, they "should" in the sense that we are both hourglass-ish (albeit with different proportions). Is it short-waistedness that makes the problem? Is it that they feel on the "young" side? I don't know. I did wear them as a much younger woman and liked the way they looked on me then, and my weight was more or less the same at the time.
I really like the idea of the All Saints Nise dress if the colour works. It's a nice combination of sophisticated and very feminine that you don't often see -- or at least I don't often see. Except on Sharon's recent WIWs, maybe.