I think one of the biggest things in winning over a shy bunny is just spending time with them on the floor in a room with the door closed. Then just have a magazine or book, or laptop, whatever to keep you occupied and let your bunny come to you. Have healthy treats ready, or if you have sugary treats like carrots, apples, banana, just cut them up into tiny little pieces so you don’t give to many.
In rabbit language, just hanging out and ignoring can actualy mean “I’m non-threatening”
Let her just become comfortable with your presence without reaching out to her.
Here is a good article with tips: http://www.bio.miami.edu/hare/shybun.html you’ll have to scroll down past all of the lecturing about holding as I know you are not trying to do that. Just skip down to the numbered tips. Those are very helpful.
This can take several weeks to start to see results. Just be patient and I bet you will see her trust you soon enough.
Keep us updated on what ends up working for you.