Desert Dunes - Speedpaint

Number 12: Twelfth in my series of quick speedpaints with ~MigrantJ! This time was time for another landscape. I dunno about this one... it was tough. I want to do an easy one next, a face maybe I didn't leave myself nearly enough time for the sky, and I think I spent too much time on the dunes, which were something I'd never painted before and quite a challenge. Ah well.. onwards!

Time: 1 hour
Photoshop CS
Reference from Corbis
No tracing!