Personally, I would NOT put a scrappy binding on your quilt. As said earlier, your quilt is very neat and "organized" (absolutely lovely and perfectly pieced by the way!) and my opinion would be to bind it with 1 solid colour.
Buy one fabric to make binding (eg. green floral)
Use backing fabric (yellow)
Use leftover fabrics & make scrappy (16 colours)
Personally, I would NOT put a scrappy binding on your quilt. As said earlier, your quilt is very neat and "organized" (absolutely lovely and perfectly pieced by the way!) and my opinion would be to bind it with 1 solid colour.