Strong rule: style --- 3D Pixar ---. A bright, clean, and cheerful medical background. The cute pink lung character, 'Лёгочка', is happily breathing. The friendly stethoscope character, 'Доктор Ухо', is gently placed on 'Лёгочка'. Both characters are smiling at the camera. 3D Pixar style, vibrant colors, soft lighting.
