This is the same image as before, with a crop to remove a half of a red house and some extra 'dead space' from around the Grand Hotel.
I also played with the color saturation for Blues and Greens and the over all brightness of all colors.
Note: There is little that can be done about the shoreline and the treeline to make this shot appear 'horizontal' to the horizon. At this point, the island curved in and away from the ferry boat we were on.