Spencer,
One of the characteristics of fog is that near objects are clearer than far objects. If you reshoot, try some over-the-shoulder shots, so that the far person will be more hazy than the near person. Maybe even have someone suddenly lean forward (toward the camera), to emphasize a point. If the fog’s thick enough, it would be a dramatic effect, as the face almost "comes out of the fog". 😉
Also, the backlit fog idea would make a nice effect.
Good luck! Have fun! 😀
Ken Hull
