To add to the above, don't be afraid to cut, either in the 3d timeline or in post production. One pit that many 3d people fall into is animating one single never ending camera movement. In the real world they would have filmed the left to right pan with a camera on a rail or crane. Then they would switch to another camera shot for the closeup. It will help you to get a more natural animation if you do the same. Either animate the camera suddenly jumping to a new location over the span of a single frame, or render out 2 individual sequences and stick them together afterwards.
Considering your shot, go watch some lord of the rings and find a scene where they do some ring closeup shots