Striking use of layers to reveal varying degrees of detail and color. I like the way you isolate the few in order to speak of the many. We were shooting this subject together at this fish hatchery, and I took the opposite approach. We both use layers to make our images speak, but yours speaks in brilliant primary colors (red and blue) while my color is more like a tapestry and my fish are presented en masse.
(http://www.pbase.com/pnd1/image/103639322 ) It is fascinating how utterly different our images are, yet we are shooting the exact same subject.