A Cloudy Sunset

It was a beautiful evening tour with the clipper.
Because of the instability of the weather, there were a lot of different cloud formations.
In the distance there are Cumulus clouds, which are developing in the higher region in Cumulonimbus calvus clouds. The top of the Cumulonimbus calvus clouds are spread and form also Altostratus floccus clouds, the nice small puffy clouds.
In the lower region the Cumulus clouds develope in Stratocumulus perlucidus, with their characteristic grey base.