Better photos are interesting photos, and interesting photos are interesting because there is some reason to look at them.
Ask yourself the question of "Why would someone want to look at this again" can go a long way in producing better photos. What is the point to the photo? Why should someone care about it?
When doing sports photography I have that somewhat easy. People care about my sports photos because usually the people looking at them are in the photo, or are friends of the person in the photo, and they enjoy the action, emotion, or general memory of the moment, and there is 'something happening' in the photo.
However landscapes are, to me at least, a far different thing and much harder to answer the question of 'why should I or anyone want to look at this again?'.
Good luck, and keep questioning things. Answers come through asking questions, and better answers come through learning to ask yourself better questions.
Canon EOS 7D | EF 28 f/1.8 | EF 85 f/1.8 | EF 70-200 f/4L | EF-S 17-55 | Sigma 150-500