Hi Elizabeth,
On the whole this is a well executed photograph of this waterful. You have used a slow enough shutter speed to convey emotion of the water while at the same time controlling exposure so as not to blow out the highlights.
There are 4 small adjustments that I would make to the photograph. The first is to remove just 10% of the foreground from the bottom of the image; it's just a bit too distracting and I think the image works just as well without it.
The second adjustment that I would make is to remove a couple of those brown fern branches, again I think this only improves image.
The third adjustment is to open up the shadow areas of the picture and to do this I am going to use a Shadows/Highlights adjustment in Photoshop. In Photoshop go to image > Adjustments > Shadows/Highlight and move the shadow slider to about 15%. That should lift and brighten the picture just a little bit more... and help us enjoy the sensations of being in the bush.
Now for the final adjustment; I am just going to apply the Auto Levels to remove the slight hint of magenta in the waterfall. This is not a guaranteed option for getting the colour right in a photograph, but in this instance it has worked and that's all that matters.
Cheers,
Anthony.
Image Doctor's edited version