A Banksy Rip-off?

Another spot from my trip to NY... on a wall between the sublime Spice Market and the très chic Pastis in the achingly hip Meatpacking District I found a few Banksy-esque bits of graffiti.

They're basically pasted up images with a touch of paint dabbed on after. A spot of googling has identified the artist as a certain Mr Brainwash. Lots more images here at Satori's photostream on Flickr.

Interesting, but highly derivative?