If you are aiming for a mature art style, I do not recommend using the tag "1girl"; instead, use terms like "mature woman,mature female, mature." If the style isn't mature enough, you can increase the weight of the prompt keywords.
Prompts:
Follow Anima prompting tips: quality tags, year/period tags, @artist tags, character count (e.g., 1girl, 1boy), character tags (adhering to Danbooru and Gelbooru conventions), series/copyrights, and base appearance.
Character names/tags should be accompanied by series/copyright tags to avoid confusing the model.
Fill in your prompts with as much detail as possible.
To facilitate testing, most example images use prompts copied from others; consequently, the formatting of some terms may not be entirely standard.