Maybe I'm cheating a bit on my challenge today. Although I'm posting photos, these are some I took yesterday and then sent them through a few Photoshop filters.
A giant housing complex under construction near campus. The surface of the building is at present covered with a layer of plastic before the finishing of brick or siding. I liked how the shiny surface reflected the sun.
The same photo simplified by tweaking the contrast and sending it through the cutout filter.
Tower of a railroad crossing sign sent through a set of Photoshop black and white actions.