Overcast days have an incredible light sense. The colors have a different flavor. Places once unnoticed, now whisper, "look at me' with quiet dignity.
To me, mood is the essence of landscape painting and overcast and fog are two incredible moods. Today when I walked through the field I foolishly was looking down observing the color on the land. When I finally gazed upward I saw this glowing orb trying to push its way through the Wow! I then knew who was the star of the show today.