Really nice, but I want to see the cap a little brighter if it's going to be the subject of this shot and not the setting sun. A little foreground reflected light would make this real nice. 6 that could have been 8 or 9.
Quite possibly my monitor, but to me the shadows seem a bit dark. Perhaps a curves adjustment would have fixed this. I do love the smoothness of the water, which appears to be from slowing down the shutter speed.