I painted this sitting on location. Just a few hours each day.
Then the sun got too hot and all my paints would dry out.
The locals checked on the progress each day. Being creatures of habit, they would come by at the same time, whether going to Starbucks for their morning coffee, or out for a walk, or to get their morning paper. The bicycles showed up on day four...quickly sketched them in. Worked on canvas with acrylics and mixed media. You have to work fast on location...best practice an artist can do.
You need to choose carefully where you sit as delivery trucks, when parked, can block your view for a long time.
This image was used across Canada by the Special Olympics.