Strong rule: style --- 3D render, realistic Pixar ---. A dimly lit concrete stairwell in a Russian apartment building. Postwoman Klavdiya is whispering intensely to Olga, gesturing wildly. Olga is clutching her chest in shock. Dramatic top-down lighting from the stairwell window.
Character appearance reference (MUST match exactly):
- Ольга: Middle-aged Russian woman, neat casual home clothes, stressed and tired but determined expression, slightly messy hair from running around the house.
- Клавдия: Middle-aged postwoman, wearing a uniform jacket, gossipy expression, nosy.
