For a toddler the “art” is a magical experience that is registered through colors. Brains of the toddlers/infants find primary colors very loud and overwhelming to them and that's the reason their environment must include only pastel or earthy colors.
In the early childhood years, children tend to reflect their care-givers and hence imitate the nurturing attributes that they see. At this receptive stage, emotional well-being sets a strong foundation for honoring values and building one’s character.