=O

Hello, I am having a slight problem with some vector art.

You see, I have a picture that I want to achieve this effect with:





See how the members of the band are in a cartoony sort of monochrome, and you can still see their facial features? How would I go about achieving that? I've tried everything I can think of, and apparently I'm not quite clever enough to come up with a decent solution that doesn't leave me with a horribly blurred subject.


Thank you for taking the time to read this.