Tutorial 4: How to create realistic marble.
This tutorial demonstrates how to create
realistic images from nothing but the Cafe'
Bauld tools in just minutes.  The next
tutorial demonstrates how to add a surface
texture from this image, which resulted in a
terrain-like composition.

Select the airbrush and paint an the canvas.  
Blur the canvas with the heavy blend tool.



Select the color swap tool and invert green.



Select the mandel pen, size 80.



Select the mandel pen, size 500.  Select RGB Blur, and blur the image.



Desaturate the canvas.  The final image is shown below: