There are two key points that I think matter to this stage:

1. The 12 principles of animation are suitable for both 2D and 3D animation.

2. A Few New Principles for 3D Computer Animation:

Cinematography: The composition, lighting, and sequencing of moving images can crystallize during previsualization and the assembly of the three-dimensional animatics. The lighting style needs to be addressed separately, since it impacts both the look and the rendering pipeline.

Facial animation: Establishing early in the process the level of facial control and techniques has a positive effect on the styling of the character and the design of the production flow. Building a catalog of facial morph targets or blend shapes for production and reuse is today as essential as building walk cycles.