Overall you made it to support the visitor with a good and clean overview.
The colours are what I expect of a marine site. You might bring in some more blue!
I think you could improve the look of the banner. There´re surely images with better motives for the banner. Also the font + colour doesn´t fit the banner look.
But that´s just my taste.
I think except those 2 points (banner and more blue on the site) the site provides that what I expect of the domain.