In 3D toon worlds, silhouettes are king. Use contrasting character designs to drive the narrative:
If a couple is "in sync," give them similar walk cycles or mirrored idle animations to visually reinforce their bond. 2. Storyline Idea: The "Opposite Aesthetics" Trope
Use subtle material swaps or lighting changes. A character’s cheeks might literally glow pink or their eyes could slightly enlarge (the classic "heart-eyes" trope, but modernized) when their partner enters the room.
Have characters lean into each other’s personal space with slightly exaggerated poses.