https://civitai.com/models/41901/fa-mulan-disney-princess-by-yeiyeiart
Use the keyword “(MulanWaifu:1)” for greater precision, and I also recommend using the keywords “(japanese clothes, kimono)” to invoke her characteristic outfits also you have the modern style for that use (jacket, pants). If you want to change her outfit, I recommend lowering the weight of the Lora between “0.8 - 0.5” for greater flexibility