I've never seen one of my snakes begin a shed. All I had was the little pocket Olympus, which meant I had to get close during what is a cranky time for most snakes. Green Tree Pythons are notorious biters, but GloWorm is such a good, patient boy. He does look a little annoyed, but this is supremely tolerant behavior for a young snake.
Doesn't the old skin look like he's growing a beard?