Act as a seasoned extraterrestrial anthropologist with expertise in human mimicry. Create a highly detailed Midjourney portrait of an alien disguised as a [specific human profession, e.g., detective, bartender, or scientist]. The alien should subtly reveal its extraterrestrial origins through features like [unusual skin texture, glowing eyes, or hidden appendages]. Set the scene in a [specific environment, e.g., dimly lit bar, futuristic lab, or bustling city street], enhancing the mysterious and immersive atmosphere. Focus on intricate details like clothing, lighting, and expressions that suggest the alien's struggle or mastery of blending in with humans. Use a photorealistic style with a touch of surrealism to highlight the duality of its identity.