Making the skybox I decide to download some cloud brushes for photoshop.
http://www.douglascastleman.com/landscape/evening-sky.html nice picture with good color and it will give some light.
Photoshop star brush notes
I made a background, and I was happy with this to start. The same evening I went out in the evening, and I started to laugh so hard. I made the sunset 360 degrees. This is with happens without any good references, and the use of my head. I need to do two things now, I want the background blue and the sunset only from one side. I also want clouds to be moving, like real clouds. But this is work in progress. ill start to make one blue background and work from there.