Use these keywords for best results:

<lora:shihoru-pony-v1:1>, shihoru, purple hair, purple eyes, large breasts,

And add those to use her main outfit (omit elements that should not appear in result):

white collar, black dress, arm warmers, long boots, black boots,

Depending on the clothes, you may want to omit the large breasts keyword.

Constructive criticism is appreciated. I would also be happy to see your creations in the gallery.