Quick Shots 42: Blagden Alley hit with new "Street Art"? or is it "Graffiti"?

Walking the Alley today, I see that the wall adjacent to La Colombe has been 'attacked' by graffiti-ist(s).
A couple of Banksi-esque 'stencils', a 'slap' and a 'throw up' appeared over the past few days.
2 Social/Political, 1 Fun and 1 Social. none individually bad, but collectively its like a TV ad for the taggers....I am guessing these 4 pieces will not last long at all. (you can click on the images to make them larger) Here they are;