How was Michelangelo's Last judgment different from other ceiling paintings?

First, the Last Judgement isn't on a ceiling, but on the back wall behind the altar of the Sistine chapel. He painted it several years after the Sistine ceiling . The picture centers on Christ and the various saints holding the instruments of martyrdom. He was given the freedom to paint scenes from The Bible and from mythology. It was decided that his work was not modest enough and a pupil of his was commissioned to cover the nude figures with loincloths and veils.