It is only trained on the first version we see of him, not the blue haired, the bald version and the one with hair and headband. but of course you can just change the prompt.
I recommand adding "green hair, pale skin, green eyes, adult" to your prompt and "woman, girl, feminine, young" to your negative prompt.
If not added, it tends to just do not make him/make him as a girl when he is in less common situations.
Some models have problems with his eyes and somes works well, but it's not by best Lora so feel free to make another one better.