this is more of a study than a speedpaint, for a piece i want to eventually put more time into. but right now just focusing on color and value in quick order.
it would be some kind of concentrically cut quarry that's been abandoned for hundreds of years, water filling in the bottom among the geometrically cut stone. the biggest man-made hole, Bingham Canyon Mine isn't far from here. i've always loved the scale and wanted to play around with the idea.
and another really cool pit: Diavik Mine