I'm constantly amazed at how different our visual perceptions of objects, whether it's a tree or a human face, can be.

I'm not being at all negative in offering that observation. It's just another fascinating attribute of the human condition in that our personal sense of aesthetics can be compounded of many factors besides proportions and the narrow spectrum of light frequecies humans can observe.

And there's the fact that compared to many other animals, we navigate through the universe practically bind. For example, the skin of an orange reflects light primarily in the blue range, but the limited capabilities of our visual system will only register what appears in the warmer end of the spectrum.

Of course, that is an amazing thing. If we all perceived reality precisely the same way, life would be unbearably boring. Except for blue oranges.