Surprised not to see any off the River Elbe between Brunsbuttel and Hamburg (Finkenwerder Airport) It's a major feature and worthy of charting

Was it deliberately omitted for clarity or what?

We do not pick and choose which rivers make it into SkyDemon basemaps individually. This is likely an omission on the part of our data source, and we are due to revisit rivers and water bodies in the near future to see if we can do them any better so it may be addressed then.

You can add the Åland archipelago on the Finland map. The islands are missing, so Mariehamn (EFME) and the neighbouring Kumlinge (EFKG) are seemingly located in the sea. I believe the aeronautical information is correct (at work now, so I can't easily check,) but the rather prominent land features are not there.