A carved marble (pretty sure) angel, definitely not concrete. Lovely. This is your pretty picture and not the title image.
The first boats are the jellyball boats; the ones downstream closer to the mouth of the river are shrimpers. Jellyballs are a certain jellyfish that they process here by the boatload and send to China/Taiwan (if I have the story right). They are desirable because they are unusual in having a bit of crunch, I hear.
This illustrates how the world economy can link to fairly small, far-away places to extract even a single resource.