From A Different Angle

We’re lucky enough to have our balcony face west. So every night (provided the weather’s co-operating) we are witness of a sunset. And we’ve seen quite a lot of them, in all different sorts and colors.
Tonight was a version we haven’t seen before, though. Kind of weird clouds on one side, threatening, and then on the other side a clear sky, divided by… Well… yeah… Divided by what, really?

D200, ISO100, 1/30 sec @ f/4, Sigma 10-20mm