I've made three DWR and love them. However, I can't imagine how difficult it must be to paper piece! I make card templates for all the shapes and then using a very sharp pencil draw around the templates on the back of the fabric. If you then put the fabrics rightside tog. and pin through to match the pencil lines you will always be accurate. Also when you attach the arcs to the seed shape use plenty of pins to match the pencil lines again. The first arc goes to the point of the seed and the second arc has the square attached at each end and finishes at the end of the first arc. Hope this helps.