A vertical educational poster about Dokdo's geography and marine ecology, featuring a respectful illustrated aerial view of East and West islets rising from a deep blue sea, surrounding seabirds, native coastal plants, and small marine-life callouts. Clear top title area, central island visual, compact map inset, and bottom facts section. Calm navy, turquoise, warm gray palette, public museum infographic style, geographically plausible rock formations, no political slogans, no brand logo, no watermark.