A watercolor style full of blooms and texture. It often has a bias toward an orange and blue complementary color palette against white backgrounds. It often adds orange flowers to compositions even when unprompted (but not always).
There are three versions:
Simple: Images are more stylized, are flatter with simple shapes, and have less detail.
Detail: Images are more realistic, have more shading and dimension, and have more detail.
Pony: Made for the Pony model. It's more balanced between "Detail" and "Simple" so it can do both anime and more realistic styles.
Note that the color palette and level of realism varies between checkpoints and prompt subjects.