Here is a double-double dose of updates for these two community supported themes with each of them having two weeks worth of new photos.

Did you know Microsoft has a continuous open call for images for these themes?

Aqua Dynamic

BoatingSunset at the beach, Netherlands
Crystal CavesOld boat, Aldeburgh Beach, Suffolk, England, U.K.
South Toe River near Hemlocks Campground, North Carolina, U.S. 

Fauna Dynamic

White-tailed deerNew birds
Dolphin, Malta