A lot to say here but the most important things are:
'mob cap' if you want the hat
'tabard' is the purple sash thing that drapes over her
You'll likely want to specify a location unless you want just a galaxy style void of stars or sakura petals
You also will likely want to toss nsfw in the negatives to lessen the LoRA's intensity

Why did you make a LoRA of a Touhou Character?:
She's my favorite and isn't popular enough to easily prompt

Why does the style change after the swimsuit image?:
Wanted to test it with my other LoRAs. It is specificallly:
Harada Takehito x2, kairunoburugu, goth

As usual:
NSFW is towards the end
Trained on anything v3
Demos are from anything v4.5 with LoRA weight 0.8