I pulled out my CSI photo de-obscuration equipment, and by examining the glints and detransmorgriphying the beveled refractions, I was able to pull out a bit more than you did.
Pic related. This is all I got after enhancement.
I understand your frustration. Do you know the sauce for this picture? I put this crappy one that someone scribbled all over into my system, and I'm starting to see the outlines of a woman walking from right-to-left, with some people lined up behind her.
If I had an un-scribbled copy, I might be able to do more. I promise I won't post anything unless I actually find something.
I am not a shill, but this might actually have something in it. I am one of the 10% who cannot see pictures in those dot things. I just cannot and have never been able to, so I have to rely on photo enhancement.
(I was the one who did the stupid CSI joke with the pen, but this is not along those lines. I really did start to see some outlines after some minor processing.)
Not glass panels, MIRRORS.
The mirrors are at angles to one-another. The photographer stood outside (or cropped) the view.
Here's an experiment for you: Get two mirrors and put them at right angles to one-another. Look into the vertex with each mirror at 45 degrees to your point of view.
Now, close one eye.