It's just alright to me. I suck at landscapes too, but I think the main thing to consider is the overall composition first. For example, I like strong diagonals, so I structure the main lines around a diagonal. Then I try to figure out what kind of symmetry I want. You don't have to think about it too technically, but if you work it out abstractly first, you can fill in with objects.
Check out the Hudson river school painters, like Thomas Moran and Albert Bierstadt. You see a lot of U shapes or diamonds and squares in their paintings, where the foreground elements kind of frame the background and give it focus and depth.