This photo was taken this past fall and had what I thought to be a nice composition. The colors were, however unremarkable, except for the windows on the crosswalk. Since I recently upgraded to Aperture 3.0, I decided to play around with the new brushed filters. A few brush strokes and a number of tweaks to the B+W filter and the color, and voila. Perhaps not the most stunning color isolation, but I think it worked well.