The Orb, The Cherub and The Church of St. Nicholas

(Click Photo to Enlarge) These pics come to us from Seraphim via email. She writes: I took these photos on a christmas shopping break in St Nicholas' church in the centre of Prague. I took the first photo, noticed something was up with it on the digital screen and took another one, I was being a tourist and didn't want a bad photo. It was only when we blew them up we noticed what we had. Not only is there a halo on the statue of the saint, which is odd enough, but his face is different and he goes from bald to curly haired and the cherub just above him has a more demonic expression, it looks almost cruel. The two photos were taken less than a minute apart but you can see the differences in them clearly. If you have any explanation I'd be glad to hear it.