Canon 80D, 18-55mm lens
f11; ISO 100; 20sec

This was shot from the roof of an apartment building in Johannesburg, shortly after sunset.  The high-contrast, textured shadows created by a nearby street-light caught my eye, leading to a low-key black and white image.  I added the clean diagonal line in the top left (actually the trail from a car’s headlights) as a juxtaposition against the gritty shadows.