choice #1.I would take all the center blocks out of the quilt and only use the outside ones for a border.
Now pull all the fall colored fabric from your stash and piece other leaves, light leave on dark background and visa- versa.
Choice #2. Take the sashing off the leaf blocks so the leaves will touch each other, no sashing. Add a few extra pieces of blue, randomly throughout the top so the leaves have a more varied distribution.
Choice #3. Send the blocks to me!
ha ha
What ever you do with the info you gather, This is going to be an awesome quit.
peace