Today I studied a plein air painting I did in New York last summer and thought about ways to improve it. I did about a dozen Notan ink sketches (black and white values only, in a sketchbook), and finally settled on a backlit variation.
Then I spent about an hour quickly sketching my idea with oil paint. I used a limited palette of four colors plus white, following a suggestion of Terry Miura: (1) yellow ochre; (2) transparent red oxide; (3) a little black; (4) asphaltum; and (5) titanium white.
It's obviously just a sketch, but I'm liking the composition! I may try to develop this into a larger studio piece. I'd add more cars, people, details, and clarify the drawing -- but, I hope, maintain the lighting and feel.