You might get more input if you posted these in the Landscape forum. Also, you will make it a lot easier for folks to review/comment on your images if you number them as you post them. It would also be nice if you gave us some location information for each image - doesn't have to be that detailed, but it would be nice to know where the pics were shot, as well as a bit about how they were shot. Knowing this information helps the reviewer to understand a bit about the image. That's all.
1. The large log cuts the image in half and generally dominates it. I would have tried to find a different vantage point.
2. This is not too bad, except the foreground portion is out of focus - maybe that is what you were going for - don't know.
3. Second best of the bunch - the sky looks a little strange - is it oversaturated? The shoreline, which acts as a pseudo-horizon is tilted to the right - it should be flat.
4. Best of the bunch. I am not sure the tree adds to the image, but that is a "personal taste" thing.
5. Not crazy about this one. It looks like one of those, overdone, clownish, HDR images that you sometimes see on web sites. You might tell us a bit about how you took this one.
HTH.
WesternGuy