Beauty comes in very different forms. Not all beautiful paintings are pleasing and peaceful fields for flowers; IMHO, something can be dark, strange, even scary, and still beautiful. E.g.: The Garden of Earthly Delights[1], or It Follows[2].

[1] https://en.wikipedia.org/wiki/The_Garden_of_Earthly_Delights [2] http://www.imdb.com/title/tt3235888/