Live on the coast of Southern California.
I do my initial drawings, watercolors, or oils on site – usually doing them with no eye toward a finished painting.
Then I go back thru pencil/charcoal/paint sketches to work at tentative ideas on large canvas stretched on studio wall, trying to mix and match sketches till I hit on something that I will do rough. I try to hold off on a “finished” painting as long as possible while sketching in rough ideas and laying on color – so there are broad areas to make changes – not painting myself into a corner so to speak.
At that point I usually go back on site to look at places where I did the initial drawings, trying to get the studio painting imagination and on site reactions to work together.
I do smaller finished paintings on site, incorporating them into larger paintings in the studio thru the use of collage when needed.