When you cut in half the mandelbulb, you also get nice old school fractals surrounded by whipped cream:
Stunning! When you say "madelbulb," what is it, specifically? (What method, what power, etc?)
The "whipped cream" looks a lot like the surface of this:
http://www.fractalforums.com/gallery/0/141_02_08_09_4_15_15.jpgHi,
The images I posted here were generated using exactly the same formula as in the image you mention, cut in half, zoomed in seahorse valley, with a higher iteration count, and a coloring based on lighting + iterations count.