Assuming that the videos are real, elephants on zoos had being recorded painting scenes on canvasses that aren't completely abstract. They are trained to paint

Assuming that the videos are real, elephants on zoos had being recorded painting scenes on canvasses that aren't completely abstract. They are trained to paint to please visitors, but curiously they seem to enjoy drawing trees. Is not clear to me if they just parrot the training or really try to send a message or draw some scene that they find instinctively pleasant. (but wouldn't be strange having in mind their intelligence).