Well, you can always just look at the gods in the two fables themselves to see the evolution of the god description. The two different gods are completely unlike, one competent and sure but aloof and apart, the other fumbling, unsure, fearful but personal, intimate.
I think you are seeing way more into this then what the texts indicate.
If I remember correctly supposedly the creation account is made in a known jewish litterary style, where it at first looks at the general aspect of creation, then 'zooms in' on the creation of man. (yes, I know this is an unfounded assertion)