I remember Galvans quite well, its a short walk off the road and a real great swimming hole, i did not swim there, but the petti-coat government did
did you ditch the camera and go for paddle?
In terms o fthe image, it appears to be midday, not the best time for waterfall scene, I think in this case you might have better off looking at isolating one o fthe aspects of this composition and going with that. For example, I do recall there is a big Boab tree up on the top of the waterfall, maybe isolating that with the waterfall might have been good.
actually after looking at it again, its a quite nice scene, what about cropping away some of the right side to draw the eye to the tree reflection then up to the waterfall?
one of the better images i got from there was big goanna on a rock...