Firstly, I set a physical sky in maya, and the scene seemed too dark, so I just enhanced the light intensity later.

I also tried different backgrounds downloaded from the website. HDR maps need to be connected to Ai SkyDomeLight. For the following rendering, I increased Samples to be 4, it would take longer but could get a better quality result.

When I felt satisfied with the rendering for the still image, I created a camera and its aim in order to render a sequence of frames.

Here are render settings that I used: