2nd edit: background added to left non-toon render, right toon render improved with softer shading, and slightly improved (and darker) background.
Test of pwToon shaders on 3D Smacky. Left image is a non-toon render with my usual Photoshop Action applied. Right image uses very carefully adjusted pwToon shaders.
No postwork except for running the Photoshop action (which is for overall color correction) and removing one crazy hair from her afro. Normally I have to mask off and color-correct each part of the non-toon Smacky to get her to look right, but this toon one looks pretty good with no extra work.
The main differences are that the toon one has colored outlines, more contrast but with lighter transitions, less metallic highlights, and slightly more toon-style (soft cel-type) shading. I think it gives her more personality and comes just a tiny bit closer to looking more hand-made than cold 3D.
Thanks very much for taking a look!