A go with new transform variant of SinCos, T>SinCos V2 along with slight orbit trap lights.
Mandelbulber. T>Platonic Solid, T>SinCos V2, Mandelbulb – Modulus set. MC render.
A new version of Mandelbulber have been released with a lot of improvements, additions and goodies. Mandelbulber is free to use and get it here:
https://sourceforge.net/projects/mandelbulber/
https://github.com/buddhi1980/mandelbulber2
If you like rendering 3dfractals, you can support his author at Patreon
https://www.patreon.com/krzysztofmarczak