The origins of the concept of God

This is a cave painting in a remote part of a cave in Southern France. It was created about 15,000 years ago, when saber tooth cats and giant ground sloths and woolly mammoths still wandered the earth. It was made at a time before man became agrarian and still led the existence of a hunter-gatherer. The creature depicted has the face and beard of a human and parts from a variety of animals. Although no one can say how long early man may have been contemplating the idea of God, many archaeologists agree that this is one of the earliest attempts to depict a deity. To me, this begs the question: Did God create man...or did man create God?