Front Range Sunset (Fountain, Colorado): Painting Reference

I took the original version of the photo during a trip to Colorado several years ago.  My friend Herman drove me from Colorado Springs down to Pueblo and we visited his mom. By late afternoon, we headed back to Colorado Springs, and I took a picture from the passenger seat around the time we drove through Fountain.  The sky was just starting to change colors, edging towards a sunset.  I recently rediscovered the photo and decided to use it as a painting reference.  I liked the composition, but wanted a dramatic sunset, so I used Painter to speed up time: to make the mountains darker and brighten the colors in the sky.  To be continued.