Tony,
I like the shot, but there is something that makes it "harsh". The blown highlights are a little extreme, but like you said it was misty and the photo has that effect. I think your stitching is good, and the angle/perspective is good. I think the thing that makes this photo a little confusing is the water flow direction. If you hadn't said you were looking down stream I am having a hard time telling that. That is the only thing I can think of that may explain the "conflict" I see in this photo. At the same time, it does look very chaotic, and you certainly captured that well. Had there been a Kayaker in the lower right of the image that would have been great:)