Funny thing is, this photo probably didn’t require much processing to look like this. Advances in lighting, especially LEDs and color, mean that Dallas’s skyline can look much like this any night.
Just add a thunderhead to the northeast, and voila!
Nota bene: Mr. Higginbotham discovered the photographer to be David Worthington, who is selling prints. I recommend Dallasites contact him to get one. (Anyone else, too; it’s a great shot.)