Pretty Computer Picture

This is what I seek.

Here you go: http://i.imgur.com/OgFe8PS.jpg

I've recently discovered an excellent tool to draw pretty computer pictures. It's a package that visualizes Haskell datastructures from a live heap:
https://hackage.haskell.org/package/vacuum-cairo

Here's the graphviz frontend:
https://hackage.haskell.org/package/vacuum-graphviz