Thanks for sharing. It's great that you've found an interest in nature photography. It's hard to tell from the small sized image but it looks a little soft. It might have been camera movement. There are lots of types of photography where a tripod isn't practical but landscape work isn't one of them. If you're not using one already, a good solid tripod can really make a big difference in your work.
It's by no means the end all, be all treaty on the subject but here's a link
to a small article that I wrote about choosing a tripod.