Capture the timeless elegance of a green heart-shaped anniversary vintage cake adorned with intricate frosting and exquisite larimar pearls, presented on a luxurious marble pedestal. Utilizing a Mirrorless Sony A6400 camera equipped with an 18mm lens, adopt a realist style to immortalize this culinary masterpiece. Ensure the shot adheres to an aspect ratio of 16:9, with a resolution of 1920x1080 pixels, to showcase every detail in stunning clarity and depth.