Nice find - took me some minutes to be sure that this is not a wreck but another ghostship.
First of all the place: There is no way that a wreck would stay longer than a week in the middle of the navigation channel. And even if that would be the case, there would be lots of stuff (surface markers, boats, cranes) around it.
Second: The shadow. Look at the water surrounding the ship. Brown, with lots of swirls and sand. And remember: This is the North Sea - not the Caribean. You never have a view deeper than 1m.
Prove me wrong...