Grandfather's Mist Ghost Picture?

Karen sent us this fine ghost picture with what may be a grandfather's ghostly mist.

"My daughter took this picture about 3-4 years ago. She took one directly before it and it was fine. I took this photo to a local photo shop and the owner couldn't explain the fog like appearance in the photo. I know for a fact that my ex-husband's grandfather has been known to haunt my household, but we've never 'seen' any type of physical proof before or after this."

"...the picture taken directly before this one turned out fine.  This one appears like there is 'tiling' in it as well as the ectoplasm.  Also, the colouring of it is completely off, too."