Its always good when the subject is " doing" something.
I dont know if I would try to "save" the photo, unless ducks taking flight are a rare occurance in your part of the world, or your never going to venture back to the park. Then the documentarian aspect may well be worth it. Otherwise, shoot, shoot again.
You did a great job removing the foreground branches in post!
A bit wider crop might help make the water more noticeable and give them a direction tonfly into.
I would hope to get them a bit less intertwined sonyoubcan tell the birds apart, for me that would be what I want to see. The females wing on the left is confusing/ distracting to me.
Definitely not an easy task. Mostly ducks are lazy then when they decide to fly, see ya and you miss the shot.
This shot is, nice.