You have an exceptional water image taken with a perfect shutter speed to capture the soft velvet water. But - the lighting sure seems very flat - instead of backlight. It will be a high score, but I think you've missed the essence of the task.
I like the image. Maybe would have liked to get a little moreof the tree branch at the top so it's not chopped off, but it's actually quite nice. I don't really see the backlighting, though. Maybe I'm missing something(?)