This stained glass is by Nasreen Macdonald of http://www.light-romance.on.ca/, I had to wait until I'd got her permission to use the image before I could post it and in the mean time I had a play, to see how the pattern was constructed. I used Coreldraw for this:
And these are the circles that were used:
For my version I've simplified the lines and will no doubt be changing the layout for the final version, but this will be my pattern, the thinner lines will form the basis of the background quilting:
Now to choose some fabric and think about the construction/stitching!