Beyond the Uncanny Valley:

One of the great charms of the Tin Tin movie (besides its solid story, and uplifting sensibility) is the incredible degree of detail, texture, lighting, and drama that infuses every scene. Because the whole movie is synthetic, every scene can be composed perfectly, lit perfectly, arranged perfectly, and captured perfectly. There is a painterly perfection that the original Tin Tin comics had that this movie captures. This means that the stupendous detail found in say TinTin’s room, or in a back alley, or on the ship’s deck can be highlighted beyond what it could in reality.

Source: The Technium