This photograph has a couple of different types of “clouds” and while astronomers typically dislike clouds here they work to create a dreamy nightscape.
The Magellanic Clouds, a set of companion galaxies to our Milky Way are visible in the night sky. The Large Magellanic Cloud (LMC) on the right and the Small Magellanic Cloud (SMC) slightly left and lower than the LMC. Across the night sky span thin layers of cirrus cloud, creating the dreamy look. The moon (not visible in frame) gives the sky a blue colour.