Ideation

This model can be considered quite good for general use although during its creation the emphasis was placed on trying to maximize photorealism.

Suggestions

Keep the CFG Scale between 4 and 9.

Use Euler family of samplers with at least 20 or 30 steps and between 25 and 40 Steps with DPM++ SDE Karras.

If you want photorealism, try BadDream and UnrealisticDream negative embeddings.

You can use as well FastNegativeV2 in your negative prompt if you are doing an illustration.