William Gilpin' rules of the picturesque, and my own Rear Ends of Sheep, Kherson

I've just been reading about William Gilpin's rules of the picturesque. In case you don't know him, he was an 18th C. curate/schoolteacher who came up with a set of rules to define what made a pretty picture, so that the aristocracy going on their Grand Tours of Italy and Scotland could be sure to make sure they could paint a work of genius that demonstrably conformed to the rules of what was good and what wasn't. I'm not sure what he has to say about sheep's backsides, but I hope he would have approved: