So, Genesis 1 is mainly about world view!
How would we know when we are assured that the account is, at best, impressionistic? It is only about world view (and I think that notion is itself contestable: the idea of world view operates within a non-absolutist ontology that the Bible does not partake in), if it gives a world view. Now, setting aside for the moment that there is such a thing as a world view, as one in a range of options, let's think: how does the Bible give us a world view that is not as fictional as the world views of those whose world view sets the Biblical data at nought and erects a world view on that basis? Their world view is clearly wrong, but, still...its a 'world view'.
We go in circles, of course. The Bible does not present a 'world view'. It tells us how the world actually, really, and concretely is. There is no alternative that aligns with what it is. It is our god-given duty to have our thinking conform to the Bible, not to use it to generate yet another 'world view' option!
Of course, if the Bible does not tell us how the world actually, really, concretely is; then it is hardly able to provide even a 'world view'. We only have the impressionistic picture that I've already mentioned. This does not 'refute' Darwinism (which truly is a 'world view') because it is categorically different. Darwin claims to tell us what the world is truly. But it is wrong (for lots of reasons, including human experience). This is what refutes Darwinism, and every other 'world view' that denies that we are here by the loving agency of God who brings forth from nothing by his will.
The creation account relies upon and teaches this: its detailed list of events underlines two very important things by demonstration (not mere picture painting): The personal (God) in loving relationship, is fundamental to all being, in the most profound way, and that this personal God is concretely involved in events and substance of creation: he is directly and intimately connected to its outcomes, and not remote from then due to an intervening or mediating principle that is, itself, not God (that is, not Christ, the only mediator, but some other medaitorial, impersonal principle as is proposed in darwinian evolution).
