Extreme macro closeup of a massive dragon's eye filling the entire frame, with a vertical slit pupil that reflects like polished obsidian. The iris displays vibrant rainbow colors - deep crimson at the inner ring transitioning through orange, golden yellow, emerald green, sapphire blue, and violet at the outer edge, with intricate crystalline patterns and ancient wisdom gleaming within. The eye's surface has a subtle reptilian texture with fine scales around the edges. In the reflection of the pupil , a tiny female princess stands dwarfed by the immense scale - appearing no larger than a speck of dust against the colossal eye. The lighting should be dramatic with the iris colors casting prismatic reflections, and the overall mood should convey the awe-inspiring, terrifying scale difference between dragon and human. Ultra-detailed, photorealistic rendering with shallow depth of field emphasizing the eye's immense size.
