well. lets talk about the good thing first...

the cover...
i luv it it really symbolize this story.

the naked body of the man represents Adam in his nakedness when he made his first sin.
the apple represents the sin of desire or lust.
the green color


could be because he is young or fresh or new to this sin. or it could be as a mark to the fact that two sinners are men not the usual man and woman.

(view spoiler)