Nice shootin' guys.
I was going to say that reflection was the starlight reflecting off Marks grin 'cos he's out doing some imaging, but from memory you had another shot that was like that the other day.
Was the shot from the other day and these ones taken from the same place? Is there an external light that could be reflecting into the camera. It looks fairly well focused so it's either coming from inside the camera or from a fair distance away off axis. I'm going for internal reflection. Where's the laptop in relation to the camera? The screen isn't pointing towards the viewfinder of the camera is it? Is the reflection in all the images? or only a few?