I really liked the reflection tables image that Gimper made and asked him for his workflow. He very nicely sent me explicit instructions and screenshots. I told him it was an excellent tutorial and if he agreed, I would put it in a pdf or zip and post it for him. The tutorial is well organized and easy to follow so the newest of Gimpers should be able to follow.
The image below is my first attempt.
The attachment has the PDF instructions, and the images are included to practice.

Pat and Gimper66, where do I begin. First Gimper66 thank you for bringing your work to our attention. Pat thank you for getting this underway so that we can have a tutorial!

Dalia, you are very welcome. I really liked Gimper's images and thought others might like to do it also. His images are beautiful and thoughtful.

Gimper66 & Pat625 - thank you both for this. Took a slightly different approach on the outcome.

Nice, OMG. I think it is a lot of fun to play with the different techniques and filters. And I really love it with GimpChat as someone is always showing us something new!

A variation of the techniques.