When you look at before and after the fall of Adam and Eve, it is a stark contrast to what sin did to Adam and Eve, in other words, us! 

Everyone was affected by the sin committed by Adam and Eve. Definitely, the beautiful paradise of the Garden of Eden was no longer available, but the gates to heaven were opened. When you compare what it was like before the original sin to what it is like afterward, it helps us see what a gift the salvation provided by Jesus Christ is. It also is a clear reminder of how much everyone needs Jesus.