This is certainly a dramatic shot. The composition is excellent, with the foreground/sky balance judged nicely. The colour saturation brings out the fiery sunset hues well, and is the most obvious source of drama. The silhouetted trees bring focus to the picture, and the dark foreground gives depth. Form comes from the interaction of the silhouette outlines and the ambiguous lines in the sky resulting in a very pleasing and effective shot. I think that the effect would be improved by darkening the sky slightly, thus increasing the drama and sense of mystery in the shot. Over all a most impressive capture.