Lighter Side of Portraiture (Caricature?)

Sometimes while drawing, I'll spend too much time on minuet details. This usually means I'm having a bad drawing day and struggling to make good of something that isn't good to begin with.

To break out of a bad drawing day, I force myself into a half portrait / half caricature mode. I find my best work comes when I find a strong character on the bus or subway... and push it slightly. I'm not a big fan of exaggerated proportions, so I tend to keep my experiments reserved.