I used tulle one time on a quilt for the quilting and learned very quickly not to use a white tulle. It will drown out your quilt and make it very dull. Using a different color of tulle will allow all your colors to pop! of course on that white background it could be different I was working on a very colorful autumn background. So be sure if you are going to try this technique that you lay the different color of tulles over the top of your quilt first to see how it looks against your quilt. You will be surprised that a bit of color will make a big difference. I ended up using a black against mine. You couldn't even see it when the quilt was finished.