I really like em. Waterfalls are some of my favourite photography subjects (i've shot a lot of them). I think you have blown the highlights and lost the detail in the water in these which is easy to do. Its always better to underexpose slightly, especially if you are shooting in RAW as you can recover more from the shadows in the editing software than you can in the highlights. Not sure if you are using a polariser, but if not, get one. Will help reduce glare on the water and rocks.

Good stuff though, look forward to seeing more from you.