A frequent mistake is copying celebrity palettes without considering proportion, scale, and lighting. Celebrity spaces balance sizes and textures thoughtfully, which is often ignored by imitators. Another error is choosing whites that are too cold or sterile instead of warm neutrals. Additionally, relying on matching sets rather than mixing materials and sensory elements leads to flat, impersonal rooms. Proper layering of lighting and including tactile materials like wood and plaster are essential to achieve that calming celebrity aesthetic instead of a generic replica.