Remember that NovelAI is just copying images all over from the database they have, using im2img even in txt2img, that's why they always resamble to something, it's been talked for a while already

>Anon, you won't be able to replicate what the paid tool is doing because their tool is an img2img + emeddings sold as txt2img. Anons on /g/ found a post on the Japanese chan where they were able to find the original images on some booru. First, they search their database for images that match your tags, then run it through img2img + embeddings for the character. When they can't match the tags, they return that weird low-quality mess you see. You can kinda replicate this using the "img2img alternative test" option on the webui, but since that isn't a priority to the devs, it didn't get developed further.