I drew three flapper images tonight and didn't like any of them. Above are scans of two of those drawings.
So, I cut them all in thirds horizontally and then played with mixing and matching them to see if anything might work.
A part of one of them did work. So using that one, I taped some blank paper to the section that wasn't quite right and started re-drawing it. This is what emerged, and I think this one will work as my flapper image.