Sorry for the delay in posting about this costume– I was waiting for a zipper to arrive, and then it turned out to be out of stock (thanks a lot, FashionFabricsClub.com, for making me wait three weeks without bothering to tell me you didn’t have my order), and I had to order it from Amazon.
Anyway, Janet’s skirt is a bit more flared than a standard A-line, but doesn’t have the fullness through the hip of a circle skirt. The panels (I think there are nine, since there’s no center front seam) are actually fitted through the hip and then flare out from just below the hipline.
To draft my pattern I took my waist measurement and my hip measurement (8″ down from the waist), and divided by nine to get the fitted top part of the skirt. From the hip point I continued drawing the lines along the same angle just for reference, extending them down to the hem (the panel was a total of 25″ long). Once I determined where the original lines would be, I extended the width of the panel by 3″ at the hem (total, so 1.5″ on each side) to get that extra flare.