Creation of Adam, famous painting by Michaelangelo on the ceiling of Sistine Chapel. Drawn with my own style. Took quite a long time to complete (few hours). Again, I did the finishing touch with lesser effort, as I don't want to waste too much time on an art piece.

I once heard from a famous concept artist, nowadays whichever art field you are in, students are lack of exposure to classical painting, expecially those from renaissance era. Renaissance art contains a lot of knowledge about art and science which worth studying. So, it's good to draw some classical painting once awhile...