Prompt: Craft an illustration depicting Lanyun (Orchid Island) in an illustrative style using marker strokes, tailored for a poster design. Capture the essence of this captivating island, emphasizing its unique features through vibrant and detailed marker strokes. Highlight the island's beauty, culture, and natural landscapes using an illustrative approach that vividly brings forth the essence of Lanyun. Create a compelling poster design that showcases the island's charm, employing the illustrative style with marker strokes to evoke a sense of wonder and allure