Smilodon, saber-toothed tiger, muscular body, fierce expression, sharp claws, furrowed brow, majestic posture, standing on a rocky cliff, misty atmosphere, Ice Age environment, snow-capped mountains in the background, misty valley below, frozen lake, icy trees, aurora borealis lighting, cinematic composition, heroic angle, 3/4 view, detailed fur texture, natural habitat, versus mammoth, giant size, shaggy fur, tusks, wrinkled skin, gentle eyes, peaceful expression, herbivore, grazing on the grass, serene atmosphere.