Luxury Book Cover Mockup with Galaxy Design

Generate a high-end product mockup image of a book with a captivating cover design featuring a silhouette of a hand holding a mason jar filled with a vibrant, starry night sky and a galaxy, set against a dark blue-green background, with the title 'Free Cover Book Mockup' prominently displayed in a modern, elegant font, and the website 'free-psd-templates.com' discreetly printed at the bottom, all on a clean, minimalist light blue background that subtly gradates to a slightly darker tone towards the bottom, with soft shadows cast by the books to enhance the sense of depth and realism, and with a focus on high-quality textures and detailed rendering to achieve a luxurious feel, and with the book standing upright on a stack of three identical books with their covers facing downwards, creating a sense of layering and visual interest, and with the overall composition exuding a sense of sophistication and editorial quality, reminiscent of a high-end design or fashion publication, and with the color palette centered around various shades of blue and green, accented by the warm, golden tones of the galaxy within the mason jar, thus creating a visually striking contrast that draws the viewer's attention to the cover design, and with the image being free of any watermarks or logos to maintain its versatility for various applications.