the kids in da classroom are upside down on the ceiling!

A group of children are hanging from the ceiling of a classroom, defying gravity. They are dressed in school uniforms - white shirts, navy trousers, skirts, and light-blue ties. They all are upside down, with their heads pointing towards the floor and their feet up towards the ceiling. They are of various heights and hair colors. They are playfully waving their arms and legs in the air, as if they are swimming or floating. The ceiling from which they hang is white with recessed lighting