Urban art's overlap with caricature and political cartooning was the aspect I was most interested in, and it has continued to strike me. Apart from the fact that urban/graffiti art is often political in essence, both urban art and political cartooning are meant to be easily consumable, instantly understandable but also immediately contemporary and therefore quickly outdated, ephemeral and disposable. Urban art and political art also both have links with comics art, of course, and use many of the same artistic conventions.
Furthermore, several of the pieces use images borrowed from, or at least very similar to (and probably directly influenced by) socialist realist art. Socialist realist kitsch has found a niche in modern urban art, and these pieces borrow from it in almost equal measure as they borrow from Lichtenstein.
Indeed, one piece could have been lifted straight out of Krokodil. Soviet caricature artists made reference to atomic bombs, rockets and missiles in their works, and artists such as Yuli Ganf, Boris Efimov and Kukryniksy often drew characters where these weapons became body parts. Although Pinocchio (I don't think) ever appeared in Krokodil, this image could otherwise certainly have appeared there - many of the other elements of the image did - and the editors would have appreciated the idea behind the image.