Today I learned 3D animation is a horror show outside the camera's field of view.
Just to add context, the director wanted the scene to use an 85mm lens which is slightly telephoto. Telephoto lenses give a very intimate feel because they compress the scene. Background and foreground objects can appear larger at longer focal lengths.
But that compression can also make objects look the wrong size in context with the subject depending on the framing.
This is done in live action as well using another person's hands in front of the camera.
Or sometimes they create giant fake hands like in Hellboy.
they did this in lord of the rings too!