Thanks so much for explaining. Yes I understand what you did and WOW, I am even more impressed. Definitely a process that taking a class would help. Kind of an "inverse" stained glass technique for lack of a better term.
I have always wanted to learn stained glass as well. I have only caught glimpses of the technique at quilt shows. Another one that a class would probably benefit and cause much less frustration then getting a book/pattern and trying to teach yourself. I found PP to be the same. Much more enjoyable and easier once I took a class.