The first really works for me In my opinion the mist needs to be more luminous and not quite as blue. I think you need to go with the mixed light and enhance it.
I did four things. I am much better at showing than explaining (Picture:thousand words type of thing)
1) Darken and cool the sky a bit, 2) warm up the hillside and darken it just a hair, 3) lighten and warm the mist and 4) just barely lighten the vegetation in front to bring out the slight mist between the trees.
A quick version to show what I mean I am sure you can do better and express your artistry and vision but it shows where I would go with this.