Skies at dusk/sunset are tricky. We think they are bright with color, but the sun is below the horizon. As it leaves it warms up the horizon line and the land around it, but the majority of the sky becomes grayed. The sky is first high in value and as it becomes later the sky's value changes quickly- darker and darker. We must remember that the Earth is a sphere so the area above the horizon needs to push back since it farther away. If you notice it tends to be green-blue.
At dusk the land cools down dramatically. Only the land nearest to the sun is warm, the opposite of normal aerial perspective.
This is one of many memory works of my favorite pond-ette.
This time of year is wonderful. Not only are the days are short and the shadows are longer, for the past few days, we have been in a wonderful January thaw. (It just ended. poo)