1) Too bad that daylight wasn't working in your favor. This would have been great right before dusk I bet. Try some cropping, theres alot going on and I assume the waterfall was your focal point? As it is, I find myself looking at everything and then going "wow, a waterfall"
2) As far as goose...wildlife doesn't like to cooperate all the time. Having him looking at the camera would have made this more attractive. Try getting down to his level next time instead of shooting down at him. Also, don't forget his tail (I chop of ears all the time )
I can't quite tell if there is a bit of lens flare in the top right - trees at the top of the waterfall - it could be the way the light is coming through the trees. Did you use a lens hood? Perhaps would have helped or a UV filter?