I quilted the background of each quadrant with a different quilting filler design, My favorite is the hook echo design
This really adds a nice texture to the quilt surface. I found the design at http://freemotionquilting.blogspot.com/ She has lots of great designs. H2O is another one I used:
The other 2 quadrants were just a loopy meander and a square loopy meander.
I finished the quilt off with a red binding to bring the red from the applique out to the edge of the quilt. the binding was attached to the back iof the quilt then turned to the front side and stitched down with a machine buttonhole/blanket stitch to mimic the handstitching around the applique.