Compositionally it's natural... I'd say the top waterfall just sneaking in is a distraction... I would crop the top to eliminate that...
I don't know what else was in the area, but I question if panning to the right a bit could have been done... If so, that may have strengthened the image. Seems like the rocks on the left could have still had a presence to the image but the waterfall (center of interest) could have been more fully shown especially towards the bottom.
I have never used POP so I don't feel I should comment on manipulations... Can you easily change contrast/burn& dodge?