Ken - you are off to a good start. Your photos are beautiful. You have an eye for beauty.
Here are some things that have helped me.
1) Keep taking photos. Practice constantly. Experiment with different angles, focal lengths, lenses, times of day, etc. You have a good eye and you will find what looks best in each situation.
2) Read. About cameras, composition, locales, exposures, filters. etc.
3) Some do not like to use a tripod. However, a good camera support helps reduce camera shake. Gives you a sharper photo. Takes more work though.
4) Experiment with filters: polarizers, neutral density filters, softening filters, starpoints, etc.
5) Look at what others have done with landscapes. As you keep taking pictures, you will develop your own style, etc.
6) Cropping. I see on you have cropped one of your files to resemble a panoramic photo. I like to do that as well. Cropping can turn a so-so photo into a very attractive photo. Practice with cropping a lot.
The best advice I have ever heard about photography is a statement by Australian Photographer Ken Duncan : " Just stick a film in your camera and get on with it." Well, today - we just stick a memory card in the camera!
Above all else - have fun! Hope this helps and encourages.
Charles Townsend
www.longskyimages.com