Very cool, especially for Apophysis! Title suits perfectly here, the first thing I thought of when I saw this was map contours. I really like the colour change from the center outwards, or should I say top to bottom? :)
....had to go back to get the title,
Title: In Utero
Gallery: new images->Abstract->Fractal
Author: lgmac (profile) -- in any case, your work is fantastic. Like the underside of one of a fern, or a sucker on a strange sea creature.