A detailed sketch of a futuristic sci-fi mega spacecraft with intricate warp engines, filled with mathematical formulas and annotations, each section meticulously labeled, harnessing the elegance of the golden ratio. The design features faux intricate details to evoke a sense of realism, capturing the essence of popular trends like Pixiv Fanbox. The piece boasts an acrylic palette knife texture, infused with the artistic styles reminiscent of Makoto Shinkai, Studio Ghibli, and Genshin Impact, combined with the geometric flair of James Gilleard, the ethereal touch of Greg Rutkowski, and the whimsical elements of Chiho Aoshima, creating a visually stunning masterpiece that resonates with the viewer.