When looking at some water reservoirs or lagoons from Google Maps (satellite), I've sometimes found this kind of structures showing regions with a slight color/bright difference:
I understand that they might need to use different sets of pictures for different parts of the coastline, but this does not seem to require the weird shapes to make everything consistent, especially when considering some of the regions that are not in contact with the coastline but just with other water regions. What is the reason for these shapes? Is this related to avoiding the image of the sun reflected on the surface? (every region exhibit a brightness gradient which may point to this image).