...as my system’s chipset doesn’t support toon rendering, I am terrible at scripting, and the shader mixer usually crashes on me, I do all toon effects in postwork.
I tried the toon rendering and thought it looked too generic. And the toon shaders added too much time to my work flow. So, I too do all the toon effects in postwork. My published work (digital versions available at DriveThruComics) creates the effects through a combination of Photoshop, Postworkshop, and FilterForge. I’d be happy to discuss my process in more detail if you think it would be helpful.