In this devtalk thread, Blender dev pragma37 requests feedback from NPR artists about a new lights and lighting experimental feature (targeting 5.3).

The way to help is to download the experimental build mentioned in the thread and play with it, if you have your own style or a style pipeline at work, test it and provide feedback in the thread. What's missing, what would be improved and what blocks you from achieving your desired result.

More info in the devtalk thread link provided and its associated example blend file.