This is an image I created based on a photo I took of a modern addition to the Strathcona Music Building in downtown Montréal.  Besides tweaking the Curves and some Saturation levels, I created a couple of layer overlays which have the Cutout filter applied.  The main feature, though, is the use of the Vanishing Point command in Photoshop [alt+ctrl+v] which allowed me to drop in a layer of stripping for the sky and match the perspective of the shot, really accentuating the horizontal movement of the image.