I started with a 3d render that I created using daz. Then I created three layers. The bottom layer is a pure white sheet the top layer is the original render and the middle layer is the filtered layer. The filter I used is postworks classic drawing in the drawing pencil category. Then I layer masked the top two layers and played around taking bits out until I was happy. Next I increased the brightness and lowered the contrast slightly. I wanted to keep it as simple as possible but have a dramatic effect.