Originally Posted by Prism99

If you would be willing to applique instead of piece, you would need only two pieces -- the underneath blue and the top green. This would be a fairly easy pattern to do this way using Harriet Hargrave's machine applique approach with freezer paper. (I use paper paste instead of a glue stick for her method; a lot faster for me.)

It looks to me as if the original is hand applique.