A little study into texture, and extreme contrast!
Shot 1 - I call this 'Old plant stuff growing on wall'. Snappy, huh? Camera - I am shooting in aperture mode a lot more these days, after spending all my time in manual - aperture f/2.5, ISO 400 and shutter 1/400. Post processing - turned to B&W, bump contrast and added vignette.
Shot 2 - I call this one 'Black stuff on white'. I am just good with titles. Camera - f/2.5, ISO 400 and shutter 1/1600. Post processing - BIG jump in contrast, and that was it.