A hyper-realistic digital fantasy art image of a detailed map showcasing a custom Pokémon region on a large island, featuring 18 vibrant cities each symbolizing a different Pokémon type, a majestic volcano looming in the background, rich colors and textures illustrating diverse landscapes, wide-angle perspective for immersive experience, natural light highlighting the intricate details, with a whimsical touch of ancient runes and mythical creatures scattered throughout the scene | Fantasy