A nice shot with potential and a lovely winter scene, my main point here would be to straighten your image, the waterfalls are crooked and really should be straight.
If you find it a problem, most cameras have a grid facility that can be shown in the viewfinder, this will help you line up your horizons at the time of taking and save straightening later in software.

Super shot Ann, but if I may be so bold, take a small amount from the RHS and a similar amount from the bottom, this will do three things.
1. It will put the birds eye exactly on the intersection of the thirds.
2. It takes the bird off centre.
3. It will remove the light blob at bottom RHS and the light bit of twig sticking out from the lower trunk.
Very small changes but IMHO ones that lift the image another level.