These are sort of a cross between mist and orbs. They are long streaks of light, essentially a very large orb. Like orbs I think that these can be easily explained as camera defects or as something moving very quickly that the flash reflected off of. Anyway here's some pictures :)
The first picture is clearly a strand of hair up close and the third one is probably the flash reflecting off something. The second image does defy explanation other than a camera defect or a photoshop but I don't want to use that as an explanation because just assuming a camera defect is just that same as assuming it's real. Here's a "video":
I don't believe this is real at all. Not for any particular reason just because its not an actual video but a few still images. It just seems a little bit too coincidental that something that happens that quickly is caught on a camera which must be set up on a tripod as the positioning doesn't change at all.
Images taken from the following sites: