Been a while, I was bored, noodled about with Apo in Cylinder variation, and got this after some puttering about.
It would've been my entry to Aeries' Fractal Light contest if not for a few notable jaggies near the bottom that took some blurring and filterwork to get rid of. As he wants a completely untouched fractal render, this wouldn't have qualified.
Ohwell. I'll render another tonight and see if I can't get it to behave.
Apo 2.03, PS 7.0.