using this model standalone is not recommended, check suggested resources

if you don't set hair color or head attachment when you make colored or female/futanari art, the result will most likely be purple hair + yellow horns or animal(mostly fox) ear/tails.
(I tested multiple times, and 2 out of 3 results were like I said)

also remember to put many watermark and logo negative prompt

watermark, logo, artist watermark, text, chat bubble, word, letter, english,