Capture a hyperrealistic portrait of an old-fashioned sailor with grizzled facial hair and dreamy blue eyes, illuminated by the soft glow of an oil lamp in a dimly lit tavern. Viewed from a low-angle perspective, as if seen from a seated position at his table, focus on the intricate details of his worn seafarer's hat and the map unfurled before him. The composition should evoke a sense of adventure and a longing for the open sea, with subtle shadows cast by the flickering lamp revealing the wear and tear of his travels.