A couple of years ago, the big headed version of myself once dismissed banksy as only impressive due to his size.... no double entendre intended, i mean the stencils. With maybe perhaps a bit of photoshop skills. Used to think that stencils where just a bish bash jobs done, easy peasy kinda thing. I still to this day think that there are far better genres of graffiti, but i've lessoned my intolerance for stencils. All for the better.
as with so much art, Leprechaun, there will always be people who could have done the same thing, have they just thought of it. "IF" they had thought of it.