For best outputs:

Sampler: DPM++ 2M SDE Karras.

Steps: 30, cfg 3 ~ 5, CLIP skip 2.

VAE: none required.

Pos prompt: just what you want to see. This is a versatile model, able from realism to anime, semi-realism and 3D, plus many different art styles. It's also good at texting, specially if keywords like "logo" are mentioned.

Neg prompt: it can be left blank, or simple what you don't want to see.

Checkpoint Merge.