Are these Good?

I'm not necessarily getting into photography, but I do enjoy taking nature shots like this and I like taking pictures of old things like weathered wood or rusting metal. I like catching the beauty of it. Some things just don't 'catch' in photos. My favorite is the first one with the dying leaves on the ground.

So I have a few shots I've taken and I'm asking the experienced and inexperienced alike to give me your opinions on what you think of these photos. None of them are lightened or altered in photo shop. I can see where the water could be more in focus- but I don't have a high end camera. I can see where the water photos need more of a focal point. And then I can see that the three trunk -the one with the two knots in it- could use some lightening up.

I want to go out and do some more.