I really like the composition of number 1, but I'd really like to see the drift wood more in focus. The colors are beautiful and I really dig the different textures.
The second is pretty awesome - I think you caught the sky so well - although the shore is a bit cluttered (not that you can help that, haha).
Maybe if you experimented and framed the shot with the large tree out of it? Then the focus would be that fantastic sky.