I thought it was a beautiful smile. Nothing wrong with it at all. People smile in many different ways. I was surprised to read on this forum (I think it was), a long while ago, when someone had posted or linked up a picture of some Old Believer men in Russia, that someone thought they looked grim and mirthless. To me, it was obvious that they had deep grins on their joyful faces. But their faces were a bit weatherbeaten, and they had fluffy beards hiding part of the mouth, and they weren't showing their teeth quite so much.
So, to me it was this smiling, happy group of three or four men, and an American saw it and thought they were frowning unhappily.
I even see pictures posted on Facebook of people who are neither smiling nor frowning but just looking normal and alert. And I will see comments underneath, "Dude! You need to smile more!" Ugh. This pressure on people to smile whenever they take a picture is a bit weird. It's like, "I don't care if someone is happy down deep, I just want to see them drag their face into a contrived expression to please me."
Not that anyone here did that, but I do read FB.
Also, thanks to everybody who had nice words about my parish church. It is quite a lively parish, with very good people quite serious about the Faith and the struggle for salvation, and, heck, one-third of the congregation are kids, so it can't get too boring. Ever. Sigh. lol. (See my language skills? Fluent in chatspeak.)