Prompt: Create a comprehensive and visually engaging image that explores the world of lymphocytes, the frontline defenders of the body's immune system. Ensure clarity and distinction to help viewers understand the intricate details of these crucial cells. In the image, distinctly identify lymphocytes, highlighting their unique characteristics that set them apart from other cell types. Emphasize the two main categories: B cells and T cells, showcasing their structures and functions in a visually appealing manner.