About three years ago, I began creating my first piece of generative art, which I named Montage Mosaic. This algorithm explores the relationship between macro and micro perspectives by zooming in and out of images and pixels. It led me to generate an image exceeding the specifications of the JPEG format for the first time. While its basic implementation logic can be understood via open-source projects, achieving efficient generation becomes exponentially more challenging as materials increase. My unique algorithm overcame these hurdles, enabling rapid generation.