The water and rocks image was composed under the tree to even out and soften the lighten. I used my 24mm lens set at f22 to get as much depth as I can. In my opinion, wide angle lenses are forgiving at any aperture size. Had this been a 50mm the sharpness would have been compromised at aperture smaller than f8. So I think the 24mm set at small aperture has something to do with the structure of the rocks captured. Also, I made sure that the sharpest focus was on one of the rocks (I think the middle one). The calm water is a result of exposing at 2 seconds, which eliminated the harsh luminance bouncing from the stream. I increased the EV to 1.3+ so I can get a longer exposure. The image was post processed using Nik Viveza to adjust the levels and increase the structure a bit, and Nik Color Efex Pro to squeeze out the color. As I’ve mentioned the Viveza is one that I would have if I have only one choice. The Color Efex is superfluous but it makes editing easier. I think I could have gotten the same results by just playing around with the RGB levels.