San Blas Bay_5

This is a very nice image, but there are a few things you might want to try.

Lower angle - Use the rocks as a focus point rather than just an element.

Longer exposure - This will make the water look all misty and add a new dimension to the scene

Different time of day.  The image looks a little dark and could benefit from slightly brighter light.

Anyway, looks are subjective and the main thing is that either you or your client like it.  My points are only things I would consider for future shots.