I'm always amazed by just how much you remember from your ghost walks. They're always an entertaining read.

Trust one of the ghosts you heard about to be a nurse. Even after death we can't stop working. I did a ghost tour in San Francisco, and it started at an old hotel which used to be a girl's school (or something similar). People who stay in a particular room have often woken up covered with a blanket, and some people who have sat in chairs in the corridor have felt like someone was holding their hand. It's nice to know some ghosts can be nice.

With your photos, it definitely looks like a woman's face in that second one. Spooky!