Lizbet from Failure Frame.

There's a general version which does not focus on her clothing. You can use

lizbet, elf, dark skin, etc

If you get her dress on the normal trigger, just choose your clothing in the prompts to guide it or add a negative as well for dress.

Outfit

Then another smaller dataset was used for just her red dress. You can add more prompts on top of the trigger to help guide.

lizbetcos, dress, hair ornament etc