Inspired by one of Zdzisław Beksiński's paintings. I couldn't figure out how to add dust in Blender Cycles so I just went with a particle generator and some wind physics to create the "dirt" flying in the sky. Rendered in Blender Cycles.EDIT: 12/18/2015Added my own watermark and the image is now available as a print.EDIT: 3/4/2016Rendered a larger version with a much higher resolution, making it available for more print sizes and products. It's also available for other products on my Society6 store (though it still hasn't updated yet at the time of this writing):