Creator: https://civitai.com/user/Stable_Yogi

Negative Embedding for Illustrious XL. Enhances your Image with Realism, details and better anatomy, Less Noise.

Use this Embeddings in the Negative Prompt section.

Add this to the negative prompt: "Stable_Yogis_Illustrious_Negatives" OR "Stable_Yogis_Illustrious_Negatives-neg"