Wild northern Wisconsin stream trout, minnows, insects

I've been out freezing my behind off yesterday and today in a couple different northwoods rivers and I've got about 30 new underwater pics out of it. These include:

My favorite underwater pics of trout yet:

Full-sized version and the other new underwater trout pics are here: http://www.troutnut.com/underwater/trout/index2.html

A new underwater photo section with ten new photos of a huge school of minnows:

Full-sized version and others like it here:

http://www.troutnut.com/underwater/otherfi...fish/index.html

A few new underwater invertebrate pics, particularly caddis larvae:

Full-sized version and others like it here:

http://www.troutnut.com/underwater/inverte...ates/index.html

Hope you all enjoy them! I'd love any tips anyone might have about how to improve my photography.

Oh, and if you're interested in stream invertebrates (some of them look really cool!) poke around the "naturals gallery" part of the site. The photos aren't underwater in the wild, but there are 1000+ photos of tiny aquatic creatures in an artificial stage I set up on my desk. Some of them are really cool.