By the part of end 6, how have Death´s voice and characterization developed?

Death begins to take on the voice of humanity. Our evil and our goodness seems not so much ironic but a paradox to him. (I'm not sure it's a him, just guessing). Some other ironies are that he isn't this depressing shadow that enjoys his job. I'm not sure I'd do lunch with him or anything but he does express sorrow and regret. He finds Liesel heroic. Death also isn't this black cloaked shadow with "sickle or scythe". He is a representation of humanity.