Incendia EX V and Paint Shop Pro.
I had a lot of fun with this Pagoda fractal. It contains 68 baseshapes. The Incendia maximum is 64 baseshapes per buffer file, so I had to borrow four of the interior baseshapes from the first fractal (the solid layer) to form the glass rings (the transparent layer).
I used a version of this fractal in a collaboration with Doriano Benaglia here: [link]
Offered in the Public Domain. No restrictions on use.