1. Generally setting your exposure compensation to +2/3 or +1 is best to keep the fog from being underexposed. Check your histogram.
2. A little color in fog is very good thing. Sometimes it is naturally there: yellow from the sunrise or blue from twilight. A little magenta added via a filter or post-processing can be nice as well.
3. Take advantage of the background separation that fog or mist provides. Trees that never stood out because of background clutter can suddenly be outstanding.
4. If the subject is too far into the fog it can quickly loose its impact. Move in closer. Use a wider lens if necessary (or zoom less – often the case).
5. We tend to see more depth and contrast then you will in the photograph. I find this even more so when shooting in fog. Closing one eye always helps.
6. Objects staggered back into the mist create a great deal of depth.

Click on the blog image to see a gallery that illustrates many of these points. Or click here. Especially note the different color hues the fog takes on. It is often related to the surroundings.

1. Your work doesn’t match the galleries client base.
2. Your price range doesn’t match their market.
3. The style of your work is too different from anything else they carry.
4. They already have too much similar work.
5. The rejection is not a reflection on you personally, the validity of your work, the time you invested, etc.

But I will say, you don’t have to like it!