Water fall, CHM 
Water fall of a fountain, Split tone 
Stream of the river, Color rising
The first photo is a water fall with a stream going down, and I used the B&W filter with change in colors. The second photo is a wide ranged water fall in a park, and with the split toning, it didn’t lose the blue of the water and sky within the black and white. The third photo is color rising, I brought out the color of the leaves to make the image looks more lively.
Jasmine,
I really enjoy this set of photographs. I think you used the techniques in a very successful way that was able to bring out the key photographic elements within each image. I especially like the last image that pulls out the orange colors of the leaves to bring a nice pop of color.
I really like your third photograph because color rising technique makes a huge contrast between stream and leaves.