Composition is one of the trickiest parts of landscape photography, particularly since unlike most other genres, you do not get control over the elements in the frame. If you are having a bit of trouble with your compositions, check out this great video tutorial that will show you some ways to improve them and show you some helpful examples as well.
Coming to you from Andrew Marr, this awesome video tutorial will help you improve your landscape photography compositions. One thing that helped me quite a bit was exploring the use of longer focal lengths. A lot of us (myself included) tend to default to using wide angle lenses for landscape work, as we typically try to fit the majority of a scene in the frame. That being said, when you have a lot of (often competing) elements in an image, it can be difficult to arrange them in a balanced and compelling way. Using a longer focal length reduces the number of elements in the frame and helps you to create a more direct and easily digestible photo. Try taking a telephoto lens with you the next time you head out. Check out the video above for the full rundown from Marr.