Doodle ON the desk.

Thanks to Alan Bourne who sent this in on behalf of his son, Lachlan Bourne.

"This is not doodle by the desk, it's doodle on the desk. 

This is my son Lachlan's idea of studying for the HSC last year.
Material: pencil & ink on unvarnished craftwood desk top.
Question is: do I sand back and varnish while he is away at Uni or do I preserve the half finished masterpiece?"

Answers on a doodle-covered postcard please!