I've seen all these great photos online of northern light, and I wanted to make a card with it. I used Sharis layout if the card, and created a mountain with trees to brake of the night sky.
The distress colors I used to make the sky was: Squeezed Lemonade, Bundle Sage, Worn Lipstick, Broken China, Evergreen Bough, Chipped Sapphire and Black Soot. Looking back I might not have needed all of them, but since I had all of the on hand I used them.
This picture is before I added black soot:
I now it's not really a CAS card, but I'm really happy with the outcome!