Here's "Cosmic Window," the last shot(s) my trusty 5d mark ii took before it curled up and died. (Actually, a CF pin was bent when I quickly changed cards. Be careful with those things!)
This is Double Arch, light painted at about 10PM. It's a composite of two exposures. One for the light-painted rocks at about 5500K and one for the sky at about 3000K. If you need any more technical details feel free to ask or + me on here!!