PIECE 1 (24" X 39")
PIECE 2 (16" X 18")
First, I taped together pieces of paper until I got a piece approximately 24" X 39" (the size of my orange piece). I then played with some shapes on the page until I was pretty satisfied with how it looked.
There is a line or two that shouldn't be here, but (in general) it shows the shapes I want to work with. You can see I have numbered the shapes. I drew these shapes onto freezer paper to make templates. I had previously put the blue piece (Piece 2) on my copier and made several copies of that design. I lightly ironed the freezer paper templates to the blue paper copies and cut them out. After removing the freezer paper (and reserving it to use when I need to actually cut shapes out of the blue cloth), I could play with the shapes and get a feel for what they would look like on the orange piece without actually cutting into the sewn blue piece.
Next, I pinned the blue paper shapes onto the orange piece while it was on my design wall.
I then pinned bias strips onto the piece to "cage" the blue paper shapes.
What do you think?