I find these shots by Shinichi Maruyama absolutely stunning. He photographs (extremely fast) midair combinations of water and black ink. Not only is the subject matter a reference to traditional sumi paintings and calligraphy, but formally an exploration of the variety of ways the two â€“ light/dark, opaque/clear â€“ oppose and combine with each other, making them an apt metaphor for just about everything. I love the thoroughness of this exploration almost as much as the beauty of the individual pieces.
Lots more, and higher-res, at shinichimaruyama.com.