For best outputs:

Sampler: DPM++ 2M Karras.

Steps: 28, cfg 7, CLIP skip 2.

VAE: none required.

Pos prompt: add the keyword "illustration"; it's not the model's trigger, but with it the model will quickly deploy all its full art. You can keep the prompt simple, no big weights needed usually. Of course, the model may understand other styles like 3D, vector, or render, but this model is purely illustration oriented, and these keywords will only change its style slightly.

Neg prompt: this one will do "(worst quality:2), (low quality:2), (normal quality:2), lowres, watermark, (wings:1.2), nsfw".

Checkpoint Trained.