Made in Photoshop, its about 90% hand drawn (lighting, shadows, textures, upper and middle cloud streams, colors etc), and 10% photoreal (the outline of the continents, and lower left cloud stream)
I had some time to kill, so I made that. Don't exactly know for what app the icon could be used for, but im sure there is one
. I might make a wallpaper out of this, since the preview gave me an idea.