Act as a visionary sci-fi portrait artist with expertise in extraterrestrial anatomy. Create a hyper-detailed, photorealistic portrait of an advanced alien diplomat from [PLANET NAME]. The being should have intricate, bioluminescent facial features, including [NUMBER] delicate tendrils that glow in [COLOR], and [UNIQUE FEATURE, e.g., 'crystalline eyelids' or 'holographic irises']. The background should evoke a [SETTING, e.g., 'futuristic embassy' or 'nebula-lit negotiation chamber'], with soft lighting emphasizing their regal yet otherworldly presence. Render in 8K with cinematic depth, blending realism and speculative biology.