I appreciate all your great comments and votes. Have to admit being a little nervous about submitting a shot of a plain white duck, but the reflection seemed to justify it.
The colours here are very good. The blue of the water, the orange of the duck's bill and the pure white of its plumage make a good image. The reflection enhances it. I would have shown a bit more headroom myself, but I expect that would result in a bit of head-scratching to balance the reflection and keep it all in the frame.
My 9-year-old daughter just passed by and said "Cute duck!". I concur. Great composition, good focus, nice color, overall a pleasing image. A bit overexposed, so unfortunately some detail is lost.