very nice setting and a stunning model, I think the tree detracts from the image though and maybe a different angle with just the model and the waterfall as a background? Just my opinion it feels there are too many elements battling for attention when it should just be the model with the stunning backdrop
For me, this is a nice image, but my eyes dart back and forth between the model and the waterfall - each fighting for my visual attention. I guess my brain isn't sure which one is the main subject of your photo.
Your intention was probably to get the full waterfall into the picture, but it makes the model a bit small, she only covers a small fraction of the frame. Maybe going closer and shooting slightly from below might have been better and would still have allowed you to show the full waterfall (while making the model more prominent).
nice overall...but it's really just a picture of a pretty girl in front of a nice waterfall...a little more creativity with all of that beauty at your disposal is needed...