Summerfair demo

I'm participating in Cincinnati's Summerfair Art Fair this weekend and the organizers like for the artists to demonstrate in their booth. I volunteer to do that each year that I'm accepted into the show because it's fun to show visitors how the pieces are created and the kids love to watch even more than the adults.
I usually demonstrate an image I've worked on previously since concentration time is spotty.
However, dividing my attention between the demo and customers gives me frequent breaks and helps me get away from the piece so when I return it's much easier to evaluate the colors or shapes

"Elkhorn Creek Fall Colors" demonstration at Summerfair