This barn reminded me of a little town my grandparents used to live in in OR. Not unusual to find a barn here and there in the midst of the town. Clearly showing that the "homesteads" were eventually encompassed with houses as the towns grew. Most people maintained the barns well enough to be used for storage or garages.
The sky, trees and foreground were done with watercolor and then the barn and shadows were done with Derwent's tinted charcoals, which are watersoluble. I drew and filled in the barn with the carcoals, gently blended with a Q-tip and then applied water for further blending. Colors of charcoal used were glowing embers, mountain blue, ocean deep, burnt earth, and dark.