Banksy Mural in Barbican Tunnel

Walking back to the Tube from Cass Business School I came across this Banksy mural.

Looking it up, apparently it was one of two that he made to mark the opening of an exhibition of an American artist - Jean-MIchel Basquiat, who began his as a graffiti artist in New York.  

I have seen the other one, which is very graphic, but somehow missed this one!