Ken, another great gallery!
As for the different lenses, I'm a novice where cameras are concerned, but I really don't see a difference among photos from the Tamron and the Canon 200mm lenses. They all have crisp edges, fine detail and depth of colour, even in the water reflections. Displayed all together like this, however, there is a noticeable difference in the photos taken by the Canon 40mm.
Very helpful for those of us interested in learning photography.
Keep up the great work!