It was pouring rain in Mexico City when I got this shot. The couple is about to step into a big puddle, but they move along undaunted. The sepia tones are an artifact of the white balance for the street lights.
Camera: Sony DSC-RX100 (a fantastic small camera). Integrated lens.
f/1.8
Shutter speed 1/60th
ISO 1600
Focal Length 10.4 mm
Minimal editing in Photoshop.