The Butterfly Effect

I free-motion quilt with all over patterns partly because I wobble too much for precision quilting and partly because I can't be bothered marking my quilt tops. Nevertheless, from time to time, I like to dabble in more detailed quilting motifs and this is when "back to front" quilting comes into its own. This is where you use the shapes on your backing fabric as a quilting guide. For example, take this butterfly fabric:

and this is how the quilting shows up on the front (click to see the larger image):