Here check these out
noslenwerd http://
photoshopgurus.com/personal-gallery.html. In that gallery art the top under the PS section are 2 examples of a 'bobble head' effect: "Biker Boy" and "NitroBulter".
Tell me if that's at all like the effect you want.
The image you referred to looks to have more manual painting (specifically highlighting) in it than any filters applied. The hair has been separated and shadowed as has some of the body/head. The eyes have been whitened and slightly enlarged. And the skintone has been smoothed right over then highlighted.