Galley section
Yes, that it is intact suggests that the plane was flat-spinning and impacted flat against the ocean at not too great a speed - certainly a nose-in from any significant altitude would have likely rendered any large structure into small pieces - however people have pointed out that it's very difficult if not impossible for a large airliner to flat-spin - this may be otherwise if the VS and/or empennage is missing but the plane is otherwise mostly intact. In that case the large concentration of weight in the engines could provide a sort of gyroscopic stabilization to the spin.
-drl