Digital coloring book page, vibrant colors, intricate details, fantasy theme, magical creatures, unicorns, dragons, mermaids, underwater scene, ocean waves, coral reefs, seaweed, seashells, shimmering scales, glittering tails, sparkles, soft focus, pastel colors, dreamy atmosphere, whimsical composition, 3/4 view, gentle lighting, playful texture, digital media, illustration style, fantasy world.