Playing with mark-making and speed. I set up my Guerilla cigar box in front of my computer, grabbed a photo from my camera and set a time limit of one hour. Awesome exercise! I didn't leave myself any time to think or fiddle. In other words, I stayed out of my own way.
Wroxeter Rowboat, oil on panel, 8" x 10"
I limited myself to 3 brushes, 3 colours (plus white) and one hour.