Wow, I really like this shot. Usually, the moving water shots are just water (waterfalls, streams etc) but putting another main subject in really gives this photo some strength. Nice job!
Thanks! The subject of the photo (he's my brother) couldn't care less if I was taking a picture or not but luckily fly fisherman seem to stand still and mess around with their equipment a lot so he didn't really move for the length of the exposure. It was also an overcast day which helped. Here's some others in the same series...