Below, you'll see any text that was highlighted with comments from the reviewer.
The opening line really grabs you. The idea presented is very interesting in and of itself, but the promise of it being developed further makes me want to read on.
This might benefit from a little more elaboration as to where the narrator is. Keep the focus on the ships, but make clear where they're standing in your opening.
Ending with a question is very interesting. There's just enough buildup to make you wonder if the narrator is waiting for a physical thing to arrive on board a ship, or if the ship arriving represents something to them