The photo is ok. Composition is right, but the image lacks power mainly because of the light, contrast and colours. The sky is too bright (a polariser might have helped, although it would have been better if there were not so many clouds), the foreground is too dark and has too weak colours.

Since you shot this in RAW, you might try choosing a warmer white balance (i.e. higher colour temperature), using the shadows filter to brighten up the trees and increase saturation.