Awww this is really neat. It's nice to see some artwork of a nun that isn't horrifically ... just... icky, you know? This is really the FIRST piece I've found in searching for artwork of nuns that isn't horribly sexual and weird.
I love the sad look on her face and the fantastic detail through the window, its really symbolic and simple like oleandervyce said before me. I really like this drawing, she just looks so sad and lonely...well done though.