This is a LORA model which means that you will need to update A111's extension to latest OR use https://github.com/kohya-ss/sd-webui-additional-networks to combine the LORA with any model of your choosing.
My models are trained for weight 1.
See example images for prompts that will activate Lulu & see the models I use. You can add "staff" if you want lulu's staff.
Generating square images instead of portrait is better for Lulu.