A dramatic fantasy storybook illustration of a group of anthropomorphic lion warriors in a wooden Viking longboat with a round wooden shield mounted on the side, navigating through icy waters with chunks of ice floating nearby, showing three fierce lions with expressive faces wearing medieval metal helmets and weathered brown leather armor wielding silver swords and spears, facing an enormous towering fire demon or giant made entirely of flames with glowing eyes and curved horns emerging menacingly behind them, sky dramatically split between cool teal-green aurora borealis on the left and warm orange-red flames on the right creating visual tension, painted in a bold storybook illustration style with clean outlines and saturated colors, epic battle scene composition with clear heroes versus villain dynamic, influenced by children's book illustration.