This is amazingly well done, you can see his face in the bars. The music, heart monitor was created by WorriedAboutSatan and is available on vinyl.
Troy Davis has spent 19 years on death row in the USA despite doubts about his conviction. German street art collective Mentalgassi have teamed up with Amnesty International to highlight his case by creating unique lenticular fence posters across London. Take action for Troy at: http://amnesty.org.uk/fence