Is gregor's transformation an extension of his life in "The Metamorphosis?" Is the change gradual or sudden? Does he still have human characteristics?
Internally he's still a human and still appreciates facets of human culture like art, but his outward appearance is that of an insect. He turned into an insect suddenly. He works so hard for his family to support them and they don't appreciate him, and then when he turns into an insect they outright reject him and kill him.