I like it a lot. It had my attention already in the 1st paragraph. I have a couple of suggestions and ?'s which i hope could help.
“James, you just never change, do you? But anyway, you better sign in, or I’ll count you as being late for work.”
Whith this line i don't think you should use the words but anyway. It dosn't sound quite right whith the way he's talking.
Also (and i don't know if you will do this later in the story) you may want to describe the living area a little more. is the afterlife futuristic. or modern. what is the house like?
I think the characters though are very well developed and they make me laugh.
can't wait to hear more!
i love green!!!!