The bible was written for mankind. Why not narrate it from the recipients perspective.
In places it really sounds like man talking about God. But then who did write Genesis? Did God dictate it to Moses? If so, didn't the Hebrews write down any of their own history? Or at least have some oral legends and traditions that they had? Or, did God have to tell them where they came from? That there was a flood and a Tower when all the languages got confused? They didn't know or remember any of this until God told them? But then why is the story so short? God only gave them the highlights? Why did it only take a few pages to cover from the very, very beginning all the way to Noah? In fact, how much time does Genesis cover? A couple thousand years? One chapter for a couple of thousand years? Are you sure God didn't forget some important parts of man's early history?
Ooh, and another problem, since Christians need the devil/satan to fall, when did that happen? I've heard some people say it was in day one. If that's so, then all these freshly made "messengers" of God rebelled in a matter of only a few hours after being created? And, then God didn't confine all of them but left some of them to raise havoc with the yet to be created humans? What's going on with that?