A detailed and realistic portrait painting of a Japanese robotic geisha, featuring intricate kanji symbols and decals, rendered with octane and inspired by the aesthetics of Ex Machina and iRobot. The artwork showcases high-resolution textures and a focus on lifelike detail, reminiscent of a scene rendered in Unreal Engine 5. The composition, free of any technical flaws, captures the essence of futuristic elegance while subtly integrating modern technology with traditional Japanese beauty. No distracting elements such as watermarks, signatures, or artifacts interfere with the viewer's experience.