nice shot by the way......, i like the stream/waterfall. my 2 cents, and i'm by no way an expert, as i am still learning........but, i agree that the tree is a little distracting, and i'm not a fan of vignetting, but everyones taste varies. i'd try croping the tree anyway, you'll only lose half the rocks in the bottom right, and it'll shift the waterfall that much further to the right. you might like the outcome, but wont know unless you give it a try. as for changes in colour, etc, if you post the original shot, it'll be easier to judge what can be done.......and the bubbles, i like


jim