Camelot fantasy travel poster

Create a vertical retro fantasy travel poster themed , turning it into a mythical kingdom destination. The image shows a magnificent white medieval castle, with numerous towers, battlements, and teal conical roofs, sitting on a green rocky island on a calm lake. Behind the castle is a huge pale golden sun or moon disc, the sky is soft light purple, dotted with slender white clouds, and in the distance are layered misty blue mountains. A stone arch bridge extends from the right to the island, leaving a faint reflection in the water. In the center of the foreground, a dark longsword is vertically inserted into a low black stone pedestal, standing on a light-colored cobblestone plaza; at the bottom, both sides are decorated with dark green evergreen shrubs and geometrically shaped stone benches. Use a clean Art Deco travel poster composition, flat vector-style painting, soft pastel tones, clear outlines, delicate grain, cinematic depth, and a symmetrical heroic composition. The castle must include 8 visible flags: the tallest central spire and the left tower each have a red pennant, and the surrounding towers have 6 small golden pennants. Bottom typography: a small uppercase tagline “EXPLORE WORLDS LIKE THESE IN VISIONARIA, FIRST CINEMATIC IMAGINATION APP.”, followed by an extra-large and widely letter-spaced main title “”, below which is a smaller golden subtitle “”, accompanied by tiny decorative diamond dots. Centered below the subtitle, add a small teal-and-gold crown emblem, flanked by thin golden horizontal lines. No people, modern objects, photorealistic effects, clutter, or extra text may appear in the image.