Cool Filers In K20D

I've been shooting and studying the K20D for about 8 months, and I'm still finding cool things it can do. Posted here is the "Illustration" filter (applied with editing within the camera). I've tried various special effects in PP software and didn't like them. I like this.
The picture is of a small Adams dry fly that I tied and macroed for a story I'm doing. For those who might wonder, this dry fly is photographed in the tying vise.

Interesting filter. Do you have the "unfiltered" version as well?

Flies are a PERFECT subject for macro photography. I need to buy a macro lens for my new setup.