Arulumaya is probably the trickiest character I've made a LoRA for.
So many things that "leak out", mainly her fake horns headwear, which is you don't blacklist certain words (like "headgear, horns, fake horns, headwear") it's going to pop out in a lot of your generations.
Then her mole under her eye, which sometimes appears on the opposite eye (no big issue), sometimes more than one mole appear, and sometimes it doesn't appear at all.
This is far from a perfect LoRA, but with enough tries, something really good might come out.