Day 468: A new challenge

My art of the day keeps me up past my bedtime a bit too often, so I am imposing a new rule on myself: it must be done and posted by 10 p.m. I have changed the setting in MailChimp so that the "Art of the Day" email goes out at 10 p.m. instead of 2 a.m. (Would you like to sign up? You can do so here.)

Today's installment is nothing exciting... just a few sketches of my left hand.