In the Sierras and other alpine regions this type of light is called alpenglow, when the last rays of sun warm the granite peaks a shade of pink. Does anyone know if there is a synonym for it if you are at sea level? “Twilight” was all the Thesaurus had to offer. And “aurora,” but I think that means dawn rather than sunset. I had fun playing with impressionistic effects on this one, putting a variety of colors side by side to try to get the feeling of that warm glowing light.
Below is a small 6×8″ plein air study I made one evening to try to catch the colors, which only last about ten minutes.