Do a search for the word " form " . Plenty of posts on it with pictures and comments.

The best way to find the right draw length is to draw a bow and adjust it until it fits. The other methods can get you close, as far as picking the correct cam or modules to begin with, but you still need to adjust it when you are done.

If you don't know what you are looking for it is pretty hard.

Your best bet is to take her somewhere that has some experience in setting up an archer and have them look at her form and how her bow fits her.

Paul