I managed to restore the fog to the lower left corner of the sunset image in the last post. When I edited the first version, I used a Photoshop plug-in called Contrast Master to give the clouds some sock and pull up the details in the dark areas. That plug-in in no longer installed on my main workstation, and I had no other way to make the fog look the way I liked it.
So I stole the fog from the previous version of the image, low-pass filtered it to removed some posterization — it is really down in the muck — sharpened it to get the edges back, brushed down the edges that were then too light, and plunked it down in the new image.
Now the layers look like this:
And the result is: