This moment where the sky is pink has to have specific conditions and also lasts just a very short time.
The red/pink tones only come when the light is passing through the lower part of the atmosphere without hindrance, so the clear the air the pinke it gets. So in this case it means there is sun passing under neath the clouds and hitting the bottom of the clouds to produce that beautiful vibrant color pink.
This photo is taken on the back side of Haram on Haramsøya and during the summer months you are not allower to walk freely behind the island since it is a bird reserve. I loved the colors, and the textures in the rocks and moss in the foreground.