The third picture highlights a discrepancy in the forms for the waves, it's only the very top one that centers on the bowl, everything is right with this piece, stunning.
Reading into your title: Flotsam is floating wreckage of a ship or its cargo ... Jetsam is part of a ship, its equipment, or its cargo that is purposely cast overboard or jettisoned to lighten the load in time of distress and that sinks or is washed ashore.
One very nice piece to get one's hands on ..
![Wink ;)](https://www.awgb.co.uk/awgbforum/Smileys/classic/wink.gif)
..
Cheers David