At this point ... if I only wanted to make a painting, I'd quit here and take it to the canvas. The reason is that things don't scale up well in art. So, since I can plan on making fairly large adjustments at that level, it hardly seems worth while to put a high degree of finish on a project.
However, since this is a demo ... and since I can't be sure that my wife will let me paint it at all ... I'd better make a finished work of art of the pencil drawing.
So far I have only spent about 3-4 hours drawing time here. Each successive rendering will now take more time because there is more to copy.
I think I will only do two more "takes" of this cartoon and call it quits. The next one will probably be a 4 hour job. (Four hours uninterupted drawing time is a rather scarce commodity around here ... especially with my grandsons puking up all over the place with stomach flu ;o)