With a little better lighting, contrast, and focus, this would have been a fabulous photo. I think I would have cropped a little more off the right side as well (and left a little more room at the top, and less on the bottom)
Good shutter speed - kept the movement of the water without making your subject too soft. I like the reflection in the water, and the way this is composed.
I think the composition could be better with a closer crop, which would cut out the empty space on the left, and at the bottom, and would put the tiger more in line with the rule of thirds.