So seriously now guys... Where is Wally?

Today consisted mostly of drinking tea and coffee... And a bit of IT skills thrown in for good luck. But as the day drew to a close I faced a simple question... But one which I believe has a complex answer.
What to dress up as on world book day?
It obviously has to amuse people, so it varied from Rupert Bear to The Hungry Caterpillar. In the end I settled for a simple yet effective plan. Where's Wally. (Minimal makeup required... Hoorah!)