There is an argument from David Deutsch about the beauty of flowers. It is available here http://www.qubit.org/people/david/index.php?path=Video/Why%20Are%20Flowers%20Beautiful

Although I do not agree with everything he says in that talk. I think he may be right in that one reason both bees and humans find flowers attractive is that there was a huge genetic gap between bees and flowers, and so the shortest way of signaling between the species was to use a more universal standard, a standard that seems to be embedded in the very nature of intelligence(at least in part of mindspace) and therefore also appealing to human general intelligence, I think it has something to do with simplicity and complexity, minimal description length and symmetry and is definitively calibrated by the our laws of physics, cosmological constants, and environment on earth. Of course from an outside viewpoint this standard is not special or any more valuable that any other, but it may have a certain absolute quality to it that may appear in most intelligences at least i this universe, it may not be completely arbitrary, there may even be parts wich would evolve in any intelligence anywhere in the MUH.