Beautiful quilt! After stabilizing the quilt the world is your oyster! You can quilt simple large flowers in the white centers or go fancy and do circled feathers. Go to google images and look up flower coloring pages for example. there are so many beautiful images that you can reduce or enlarge to your size block then copy as many as you need and pin in place and sew right over the lines with your DSM. Practice first on scrap fabric with batting if you have not done this before. You can look up just about any image you desire in coloring pages. Good Luck and I would love to see your quilt when you quilted it!