I saw a head! Of course it's not a head. Just a fluke of design. I didn't see any others but I was too busy looking at and identifying any parts of a face I could find.
Here is a picture I took with the iPhone. Then, here the picture again is with arrows applied pointing to the facial parts I fancied I saw. How about you have a look at the first picture and see if you see what caught my eye as I hurried past the wall on my way through to the next room.
Let me know. xxoo Biggafy for a better view.