A highly detailed and realistic portrait painting of a Japanese robotic geisha, adorned with kanji symbols and intricate decals, created using Octane Render for lifelike textures in 4K resolution. This artwork blends the themes of Ex Machina and I, Robot, showcasing advanced technology and elegant design. The composition is carefully crafted to avoid common digital imperfections such as blurriness, low quality, and artifacts. The geisha's anatomy is accurately depicted, with attention to realistic proportions and detailed features. The background is seamlessly incorporated, ensuring a harmonious and immersive visual experience.