Voronoi Noise + Fractional Brownian Motion Shader

Hey guys. I created yet another shader last night for fun that I figured you might enjoy. Typically fbms are using with value noise to generate a cloud based pattern. I wanted to see what I could create if I ran a cellular based texture pattern though an fbm. Here is what I came up with.

To see the shader in action, take a look on my site
http://xdpixel.com/voronoi-portal/