If Bridget Riley had been a landscape artist she might have produced something like this, but in fact it's an image from photo paper supplier Permajet which I'm using to obtain a custom profile for my new printer, so that when I print with it on their Oyster 271 paper (my long-term favourite), the colours will be completely accurate.  I also calibrate my Mac display regularly with an i1 device from X-Rite to ensure that WYS on the screen IWYG on the paper.  I'm sure that Tony Blair would approve.