That make it tough. I'd guess just by what you have to go on that you hit her high. As you know, you hit one in the shoulder, you normally don't go in much past the broadhead. In fact, the threaded part of the shaft is typically broken off in the insert. I can't tell by the pic if you are shooting cedar, but the break is still normally right behind the broadhead.
I have seen them shot in the "backstrap" with the arrow stopping at, but not breaking into the spinal column. If that is whats happened, you have a deer that will likely recover. What you see on your arrow is about all the sign you will find. You may find blood spots for a short distance, but not much.
Then again, you don't know where you hit and she could be stone dead. Hoping for the best!