Going for that comic-book effect

I took a picture of Derek Jeter and manipulated it so it resembles a comic book cell, any sugestions about how I can make it feel more cartoony would be great.

First suggestion: post the image

Is it not showing? I see it, it is thumb from imageshack.

Anyway, here is an updated version with smaller dots:

If that doesn't work here is the link: http://img27.exs.cx/img27/7363/yankeeswallpaper30copy0ky.jpg

And the first: http://img146.exs.cx/img146/2046/yankeeswallpaper30copy6uo.jpg