Sunset in Idaho

I started a new landscape painting. This one is also from one of last ID vacation photos. Sun was setting into the horizon while I was driving toward south east  on I-84. On my left, the snow mountains were reflecting the last light of the sun, getting darker and darker from the bottom toward the top. I couldn't resist my desire to take photos despite the fact it's illegal to stop my car on the interstate highway in a none emergency situation.
The size is 14"x28".