According to Wil Wheaton, Frakes had a back injury from a previous job before he was an actor. That's why he sat down like that, was often leaning on stuff, often put his foot up on things, etc.
It's a shot from the new Jordan Peele movie
lol probably the same person taking the photo :P
I can flex my toes back until the sole is as smooth as glass, and... well, the tickle factor is a small problem. But it would be a bigger problem if someone else did the painting, because it's hard to tickle yourself.