Uncover the Mysteries of Fantasy Realms

Generate an image for the cover of a story, there must be a dark background with a landscape of London, on the left Big Ben, with on the right a slim boy in a white sweater and black leather jeans with brown hair looking towards right. Integrate symbols or icons that represent digital, such as pixels, binary codes, or light and electronic effects that intertwine around the characters and Big Ben. Use visual effects that suggest the transition between the real world and the digital world, such as lines of code overlaying images, or a luminous aura emanating from the cell phone. Use a contrast between colors to highlight the theme, such as electric blue to represent the digital world and gray or black for the real world, or a mix of colors that represent both overlapping worlds.