To answer a question I have a certificate in Fashion and Design did 3 years study and learning to pattern make, draft, design etc. Did this as an income supplement for years making clothes and costumes from drawings/sketches to peoples measurements. One thing I did in the late 80's was to make up for a designer 20 dresses for the staff at the resort at Uluru never got to fit them only had each person measurements, non were sent back for alterations, wonder if they are still in use.
I have finished piecing the hexagons for this bag the next step is to back them with pellon and hand quilt the two pieces. Still have 4 weeks to get this done before the workshop on construction.