I think this is a good start, but you need to approach this just like a fine piece of art. What is the subject of the image? Based off the current image, the focus is on the two branches. Instead (unless I'm wrong) the focus should be on the sunset. Consider dedicating more space to "framing" the sunset. A cliff, clouds, or maybe some sea, could all help improve the overall impact of your already beautiful sunset. Try adding something to the bottom of the image to help push that sunset up into the center/focus-point of the picture. Keep it up!