Image Details
This is a nebulabrot rendering of the function \[z_{n+1} = z_0\left[\cos(z_n)\cdot\cosh(z_n)\right].\] It consists of four layers, and took a total of about 120 hours to render (plus processing after the fact). The full sized image, which can be found by clicking the picture above, weighs in at about 16 MB.