Moods of Winter

I took all four of these pictures during the last couple of weeks. It's still dark when I wake up, but spring is faintly in the air - not at this hour, but later on in the afternoon, when the sun's warmth presses and lingers, much as a chilly dusk in early September hints at fall.

Look carefully at where the light is most intense in each shot, and you can see how the sun is beginning to swing north in its orbit (or rather, the earth is revolving so that the northern hemisphere is getting closer to the sun).