Her favorite time of day was the moment the sun hit the old ruin steps as it was rising. It always felt so good after a cold night.

It's tricky to get patchy, wispy fog/mist in DS. So I use an old Vue trick and load iRay clouds, drop them to the level I want and play with the cutout opacity.
The usual methods of creation, DS with very minor post work in PS, and no AI. TFL and have a great week!