I don't have a picture, buy my Mom and my Cousin were in a room by themselves and they asked the cabin steward to separate the bed into the twin bed configuration, and he did. My Cousin wasn't happy with it and called him back and had him extend the distance a little bit further. I'm pretty sure they moved the small bedside tables so that they were between the two beds.
I would estimate that it wouldn't be more than about 24 inches between the beds, but that can be a lot of space. That's the inside edge of one bed to the inside edge of the other one, it doesn't mean that she'll have to hang on that edge all the time.
hope that helps