i think ingenue is a tough one to 'do' for most of us grown-up, intelligent women - especially if you're a feminist too! i know i was utterly astounded when i was diagnosed as it - twas the one type I was certain i wouldn't be 
i now know it's spot-on for me and i've had this side of me dying to come out for years. i'm now completely comfortable with it and have a recipe of 2 parts Ing to 1 part nat which seems to work.
The Nat side makes it easier to wear as it tempers the girly sweetness of the Ing. eg I now wear lace loads but always with jeans for my Nat side.
and yy, our waists are v important! i look much bigger if i don't have waist definition.
i now shop anywhere and everywhere to get stuff that's spot on for style and colour: Dorothy P, Hobbs, ASOS, Cath K, Warehouse, Boden, New Look, even Next which I'd sworn off of pre-style day.
I also love thrifting and have found some real gems for pennies!