I'm loving these illustrated maps by British designer Owen Gatley. They were produced for inflight magazine Ling which is pulled together by Le Cool (who incidentally make amazing travel guides).
I recently stumbled upon a blog called 'Somefield' which showcases illustrations by Barnaby Ward. Ward has some amazing stuff including a series on Alice in Wonderland as well as a comic called 'Perils of the Uncommon Skyway.' Go take a look for some inspiration! http://somefield.com