The most obvious upgrade in Version 3 is the skin. In the initial Day 3 release, Tatiana’s skin was excellent but slightly plastic. For "Tatiana 3," the engineering team introduced a multi-layered SSS (Subsurface Scattering) map. Notice the capillaries around the nose and the subtle yellowing in the thin skin around the temples. This is a 4K texture shift that makes her look alive, not rendered.