I sat and thought about the corners of the quilt top for ages last night and eventually decided to change it.
I made a curved template for the blue and used the overall pattern for the outer piece on the block. I think it looks much better and gives a proper impression of the chicane effect I wanted. I have all the pieces ready to be glued and will then create the blocks using machine applique. Hopefully the top will be finished by the end of the week.
Enough sewing for today - I am off to enjoy myself with friends for lunch.