The rainforests of Snowdonia truely live up to their name when it rains as the places come to life with wonderful textures and vibrant colours and more times than not, you come across watercourses that are usually no more than a trickle, become fast flowing streams with tumbling falls, such as this example in the shot.
Regarding the composition; the way the stream led the eye down into the trees and light was what interested me in using this angle to capture the the stream and think it works quite nicely.

Rainforest Waterfall