Your quilt is very beautiful. I did one for my very first project when I was learning how to quilt.
A tip for anyone interested in appliqueing the "plates" to a background. Sew a running stictch at the edge of each plate knotting the thread at the begiining and leaving long tails at the end. Simply pull the thread a little bit like making a yoyo. The edge of the "plate will gather up a little and the raw edge will turn under slightly. Press it and then you can slip stitch it to your background. I did this on pattern called "Dancing Fans" at Christmas and it worked like a charm. Hope this helps anyone who is intimidated by this pattern. Its not that hard a pattern to do and looks great when completed. Mine had 12 blocks and wide sashing and borders and was big enough for a queen size bed.