Thanks for all the comments. In reply to oldmangrumpy, when I see an image, I want to know if I can create it. The trick is to be relentless. For example, it took me well over 10 years to be able to come close to mimmick Jigsaw Image Mosaics, and then, one day, a fantastic coder created a way for me to so. Also, for over 5 years, I wanted to create circlism renders and then David (G'MIC) came to the rescue. Once you have something that you want to do, it's just a matter of time before you either find the solution yourself, or, in my case, someone comes to the rescue and gives me the solution. lol
It may take years, like I said, but don't give in. That's how you learn to use GIMP too. It literally took me over two years to get layers for instance, but then, it just clicked. Now, I pretty much rarely do straight renders; always depend on layers, layer masking and layer properties for my results.
