Painting an Abandoned Farmhouse in Pennsylvania

This old farmhouse is on property near my parents' house in the north eastern Pennsylvania countryside. It has been vacant for decades after the head of the family had passed away. One of his sons moved to the city to pursue his career while the other son lived in a trailer next to the main farm house. The farm itself went into disuse long before the father passed away. I believe that the family, as a whole, lost heart in farming and just gave up in the property. This is the process that i go through when I paint an egg tempera on watercolor paper instead of a gessoed panel. Let me know what you think.
Pete