It looks like you're nearly duplicating the geometry of coastal islands and setting them as nature reserves with the same name. Have you considered just adding the nature reserve tag to the island? It would be far cleaner.
https://www.openstreetmap.org/way/1348410599
https://www.openstreetmap.org/way/219705227
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            Published using OSMCha: https://osmcha.org/changesets/160972732
            