The digital painting was done with landscape2 in DAP and the original out of copyright black and white drawing, by J.Archer, is from the Gallery of Modern British Artists 1834 http://archive.org
Text as above:
Heidelberg Castle, one of the most romantic of the numerous castles on the Rhine, presents many fine subjects for a picture. J. Archer has chosen one of the most picturesque views. The bold antiquated tower and the gloomy sky harmonize well together, and the very ruin extends to the old decayed trees with which the scene is adorned. Heidelberg, situated on the river Neckar, is a city of Germany, in the circle of the Lower Rhine.