This is the first lora I make so forgive me if it is difficult to use, I also appreciate any advice you may have to improve this LoRA or create others.
The model can generate yellow and black hair randomly so if you want to ensure the yellow color I recommend the tag "yellow hair", another thing I've seen is that it is not very good when trying to put a helmet, just try as hard as I could it didn't come out right.
Finally it is possible that if you generate the image without activating "Hires upscale" it is possible that the face comes out with distortion or simply does not make much sense but in most cases by activating "Hires upscale" it is solved.