Thanks, buddy! No, I don't shoot with IR (yet), I had some plans for it as the summers around the place I am stuck for the covid thingy, are quite hot :)
I mainly post-process in Lightroom, the darker sky is a result of playing with the color channels in the Black & White Mix ;)
Good luck here on Hive and on your path as a photographer, you've got a beautiful web site :)
RE: The ghostly winter of Northern Norway