Yeah, I would... but let’s not talk about that right now.
Actually I was thinking it was smoke.. Just wondering what you were smoking..
But seen as you weren't smoking, I thinks, perhaps, given it was flash photography & cold you captured either your breath or body heat.
But that's just my opinion on the photo.. Don't get me wrong, I believe in the probability in spirits, entities, and the likes, but given that you didn't see it in the real but the camera did, I'll have to go with the most logical conclusion.. If you did see it and how "wow that weird" then took the photo, perhaps then I would more likely think that you captured something spiritual.