Hi Thiskal...  
Yes.. allways tricky... 
Rendering will take long by changing the coastline. (weeks)
The coastline is still okay.
Your background PDOK picture  Actueel was taken was taken at high tide.
You removed a lot of sandy area. Maybe have a look again. (Low Tide)

If you use PDOK 25 cm 2022 you will see sand at the  'Het Rif'.
https://www.satellietdataportaal.nl/?base=openstreetmap&res=0.3%2C0.5&datemin=25-03-2022&loc=53.46235%2C6.142387%2C14z&overlay=mos-0&marker=loc&acqdate=2022-09-05&acqid=20220905_110130_SV1-03&sensor=SuperView-1

Greetz,
eggie