After years on being a still shooter, I have just started video. I caught a bit of the bug on my last trip to view waterfalls. I shot video on that trip, but was not really impressed with it. I am preparing for another trip, so I wanted to go out and get some test videos before my next trip. I am not pleased with the results. However, I am not sure if it is 1) technique or 2) post processing. I am shooting with a 5D3 and for these three videos, I used a 16-35 2.8L lens, 24fps 1080. I shot at the lowest ISO possible in increments of 160. I was at 1/30th for 24 frames per second. I selected my aperture based on light reading. I used technicolr's cine camera style (which I am aware is specifically more for post processing.) However, I feel the video is horrible. It is not what I expect from my camera. In particular, you can really see how the video is hammered on the tree in the last video. It's just doesn't seem HD. Can some one point me in a direction? What can I do to make my videos better? Thanks for your advice.

https://youtu.be/hhjYnNZjxcw

https://youtu.be/kpce5S9q4Jw

https://youtu.be/IXIgbO3RwqM