At the Behance Network, Davide De Cubellis has posted an impressive gallery of his cover art for the Italian comic John Doe. De Cubellis's approach to the series changes, with each cover clearly influenced by a different modern classic artist. I think I can spot tributes to the styles of Duncan Fegredo, James Jean, Tony Harris, J.H. Williams III, Massimo Carnevale, Lee Bermejo, Javier Pulido and others. De Cubellis has a desktop wallpaper of the complete set on his blog. You can see much more below.