This looks pretty real, I have seen more and more of peoples bodies suspended outside of the helis for these sorts of non-chalant selfie shots.
I used to catch people sticking their feet out of the heli and taking photos of them for their Instagram feed, especially on the photo charters that I flew. This of course was after specifically giving them a very detailed safety brief before the doors-off flight never to do such a thing. They usually stopped after I yelled at them.
Playing devils advocate here though; it would probably be said that he had the lap portion of his belt still secured and that it was pre-planned to remove the headset and carried out at a very low airspeed etc.