For best outputs:

Sampler: DPM++ 2M Karras.

Steps: 41, cfg 7, CLIP skip 2.

VAE: kl-f8-anime2_fp16.safetensors

Pos prompt: you may add some quality keywords to increase the overall quality a little, like "(masterpiece), best quality, high quality, anime screencap"

Neg prompt: "By bad artist -neg, easynegative, bad quality, worst quality, (3 legs), (3 arms)", being the "By bad artist -neg" and "easynegative" embeddings included in my example runs.