This is a rendering of Spider variation of Folding Int pow, I combined the Inside rendering with the normal one to give it a full 3D appearance with Photoimpact 
Spider formula is very old, see [link]
To get Spider in Mandelbulb, choose any formula that at z=0 looks like Mandelbrot and add as Fo.2 _updateC; xyz-mul = 1 and c-xyz mul = 0.5 (see also _updateC 's info).
Luca
Spider formula is very old, see [link]
To get Spider in Mandelbulb, choose any formula that at z=0 looks like Mandelbrot and add as Fo.2 _updateC; xyz-mul = 1 and c-xyz mul = 0.5 (see also _updateC 's info).
Luca
I don't see any spider but my imagination does see a magic city imploding surrounded by hills.
The name of the formula is Spider, see the link

ah now it makes sense!
This ONE time, you got the title right 
hehe 
beau travail!
Thanks for the support 
Interisting technique, although I'm not fan of the coloring 
Me too, but it is hard to combine two images "blindly"
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