A stunning photorealistic image of a large billboard perched on a hillside, reminiscent of the iconic Hollywood sign. The text "PromptHero" stands tall in bold, elegant letters, each character crafted to reflect a sense of grandeur and creativity. The billboard is bathed in the golden glow of a setting sun, casting long, dramatic shadows across the rolling hills in the background. The skyline is a deep, endless blue, dotted with a few wispy clouds, creating an inspiring and cinematic atmosphere. Lush greenery surrounds the base of the billboard, adding vibrancy and life to the scene. The overall image conveys a powerful message of innovation and heroism, blending seamlessly into the picturesque landscape while still retaining a touch of playful charm.