Night sketching in alleys opens up new worlds of light and color.
Streetlights come in a variety of color casts: the yellow of sodium vapor, the green of mercury vapor, the red of neon, and the blue-white of metal halide. Our eyes can see variations in these light colors that elude the camera.
The lights are clipped to my newest sketchbook, titled "Hitting the Whiskers," following my custom of lifting a line from the first page of the sketchbook.
A garbage collector's shirt or uniform is helpful, too, because you want night vehicles to see you. You can pick up these uniforms used at a uniform store. Or you can get a reflective safety vest online.
Previously: Multi-Colored Streetlights
Vintage Streetlight Collection
More light colors in my book Color and Light