Any bird that is rehomed is going to go through an adjustment period. Show patience, and sympathy with her. She's eating, she's playing, she has her own cage (nest) It's just in a different tree, with a different flock.
If there is a favorite tv program or some favorite music, it will help her to reach out and step out.
Gentle touches, coming up from in front, and under her, don't even try to bring you hand to the back of her head for now. Perhaps just sitting and talking/reading quietly with the door open, and a hand resting just inside the cage. It will help her realise that this new flock is not out to hurt, but to welcome.
Tip your head to the side, and look out of the corner of your eyes. Remember you are strange, and you have the eyes of a preditor.... they are in the front of your head. Tipping the head and looking slightly sideways tells her in birdese that you are interested in her.
Call the woman that had her, and find out the things that she likes to do, and incorporate them into your day. Times to eat, was she allowed in the room with eating? Was she offered nibbles from her own dish at the table? Feeding time is flock time, and a stronger bond is created.
She will come out of her shell pretty quick if she realises that she is a flock member in good standing.