really like your composition , as for cropping i really dont think you are going to improve this image by cropping anymore, as with the tree there you are not going to gain much by cropping top. However i probably would apply the rule of thirds when taking an image like this , (and not take third from tree top) .also going down lower to take shot would work just as well. As for cropping from bottom ,same thing ,you will loose effect .Also i may of taken whole water hole instead of missing edges .Again all comments are only our personal thoughts. Great image ,look forward to seeing some more.
