Create a 3D illustration of a transparent human torso, prominently displaying the lungs. The lungs should be depicted in a semi-transparent style, with a vivid red, toxic sphere inside one lung to symbolize lung cancer. Ensure that the toxic sphere appears menacing and vibrant, contrasting sharply with the rest of the lung tissue. The background should be simple and unobtrusive to highlight the lungs and the spherical representation of cancer. The overall image should convey a powerful message about lung health and the dangers of cancer.