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:

Kherson