I like the low angle of the shot, good focus on the duck with very little distractions, although the blurred reflection slightly throws me off the main subject, I may have cropped the bottom 1/4 off the frame. Overall great image.
Hi Enrique, love the low angle here, and you have captured a cool swimming pose. Light, exposure and sharpness spot on, and I really like the colour of the water, FG, and BG. If anything, I would remove the second tiny catchlight, and take a touch off the bottom.
You're right, she's beautiful. The water color (and calmness) is perfect for her.
See what you can do with the suggestions above (I agree): remove the second, smaller catchlight and take some off the bottom (and maybe just a little off the top).
Enrique,
I don't think I would change the photo at all. Just my opinion. Overall this image is just beautiful.
Nice color and movement of the water. Also great sharpness.
Janet