Nice picture. I like the effect you are trying to get with the stream. However, the trees are a little restricting i the photo, especially with the area visible to the right of the right tree. Also, there is little impact from the photo, and there is no strong connection to the challenge topic
Like the richness of this. I think I'd crop much tighter on top; I think the composition is dramatically stronger if the stream runs to the top of the frame and out.