This image was originally drawn whilst sitting on a train, therefore created the natural form of wavy lines in the drawing - this achieves a more relaxed style of drawing. Experiment with other architectural landscapes.
Previous pinner said: "Moleskin art. I think I recognize this as the art of Mattias Adolfsson, but I could be totally wrong. Still, if you don't know who Mattias Adolfsson is, you should definitely look him up ^_^"