Watermill in Westfalen

As flat as Münsterland is, the area around Nottuln is wonderfully hilly. The Stevern flows through this area and provided power for this gristmill. 
   This piece was a challenge to do because of the perspective. While the buildings themselves were properly square (as in square and plumb), the channelized river was anything but square, making the linear perspective fun! The subtle value shifts on the mill, especially with the planes of the roof, contrasted to those of the walls, were difficult to deal with in a fifteen minute sketch like this.