Four layer image made with Ultra Fractal 2.04, using Mark
Townsend's great gnarl formula. Layers one and two are warped
with Damien Jones' Phoenix (Julia) transformation, layer three
is hexagonally tiled (written by Sylvie Gallet). In layer four
with bmg1-formula and petal traps coloring mode only a few color
spots are added. Ambient music (hello P.J.) : "The Caves Of
Altamira" by Steely Dan.