Velvet - a type of fabric with a dense, even pile that gives it a distinctive soft feel.

- Wiki

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about versions:

v1 - In between of photography and artwork feel. Think over-photoshoped stock photos. Focused on looking nice.

RAW - Finetuned for a slight push into realism. More analog feel.

RA2 - More details, more contrast, more creativity. Possibly less realism.

suggestions:
scheduler: DPM++ 2M SDE
steps: 20-40
CFG: 4-6 for

avoid too much tokens in negative prompt

avoid loras (most will impose their own style, even if style is not the subject of given lora)