First of all the settings. Don't use a CFG scale over 7 or else you will be getting artifacts. I found 6 to be pretty good. Use this prompt for the best results:
<lora:MeruSuccubus:0.8>, merusuccubus, (red skin), colored skin, (yellow eyes, glowing eyes), horns, (demon tail), choker, bangs,
Very important to also include this in the negative or else you will be getting extra nipples and a lot of moles:
(multiple mole:1.2), (multiple nipples:1.2),
Steps: 32-37
CFG: 5-7
Resolution: 512x768