For this second design I made a second cut in the jeans (up the centre back seat). This allowed me to drawer the centre back in more, and add front pleats (that would be top stitched down) to shape in the waist. The jean legs were swept round to the back and pleated together then secured to the back to create a bustle.
For this design to be secure this would need straps (which I could make by cutting off the jean hem from both legs). The overall shape is interesting because of everything sweeping round towards the back.