0 action-white-green-gold-deep-blue-mystery-wonder-exploration-book-cover-ideas-with-sunlight-sea-creatures-submarine-nautilus-corals-divers-octopuses-underwater-landscape-1f65ac9a6f The visual composition of the cover captures the essence of exploration, wonder, and mystery found in the book. The vibrant underwater scene represents the fantastical nature of the story, while the Nautilus, divers, and sea creatures hint at the action and adventure within. The choice of deep blue and gold colors conveys the depth and mystery of the ocean. The typography and layout were carefully designed to be visually appealing and easy to read. The high-quality matte paper stock enhances the overall look and feel of the cover, adding a touch of elegance.