Painting at Sunset

Since I have been doing so many sunrise paintings I thought I'd try a sunset painting.Here's one from on top of a hill at Sandstone Ranch looking west toward the city and the mountains. I think it's a bit harder to paint a sunset than a sunrise. The sky stays relatively the same until all of a sudden it really changes quite rapidly as the sun gets closer to the horizon.  Colors change rapidly and it gets darker. You want to change all the parts you've already painted, change the colors, but there's no time, light is fading.  It's a race.  Evening Glow, 9 x 12.