For best outputs and usage:

Sampler: Euler a.

Steps: 25, cfg 7, CLIP skip 2.

VAE: none required.

Pos prompt: start it with "score_9, score_8_up, score_7_up, score_6_up".

Neg prompt: "watermark, signature, artist name, patreon username, text, monochrome, teeth".

Checkpoint Merge.