As someone rather into graffiti and stencils in particular I have to say it is utter gash.
But then I am not doing some wank art-school degree so what do I know, It probably stands up well with people who don't have a clue about graffiti.
More respect would have been given if it didn't come across as you just "saw banksy and though stencils where cool" as so many art school kiddies do, then completely missed the point by emulating him. The technique is also appauling, over and underspray, drips. You can put it down to style but then I hate little more in the art world than the 'style' of incompotence with a media. So if you had used original stencils, perhaps multi-layered given layers where part of your theme and practiced before hand a bit more then you might have been on to somthing. Composition is a bit all over the place too.
I am a cunt.