I just went through the published pictures just to compare them for myself and the only thing I might suggest is a reflection from the white (or light colored) surface the boat is sitting on giving a "milky" look to the side.

I thought one of the best pics was the middle one in post #6, even though it was no a side picture you can see some of it. The second picture in post #7 isn't bad either. You're far enough away that except for the reflected flash on the bow the rest of the side appears to be fairly even.

Probably a better shot would be one sitting on the stand in the grass nest to the pond and then of course some in the pond in action or just sitting there getting ready to get up and go!

Got all excited there.

Bob