JasBrick has recently procured a 'very expensive printer, with very expensive ink' and has since been testing various torso designs on minfigures. One of those tests was for a couple of henchmen for a Dark Knight style Joker.
Putting the printed torsos aside for a moment, you really have to appreciate how difficult if must be to paint a face that small and pack it so full of detail. I've seen similar designs on printed heads, but this is quite amazing!
If you are more keen on those printed torsos, you can check out more of Jas' tests on his Flickr stream.