Chiaroscuro is an artistic technique that uses strong contrasts between light and shadow to create a sense of depth and volume, often enhancing the dramatic effect in a composition.
For SDXL and Pony recommendations, please check their respective versions.
Trigger words ArsMJStyle, ChiaroscuroFantasy
Works great in the 0.3 - 1.2 range, depending on the Lora Stack you use.
I recommend starting in the 0.8 - 1 range