Create with futuristic and semi-realistic style. Show an artificial intelligence

Create with futuristic and semi-realistic style. Show an artificial intelligence humanoid named Nova, with an elegant and almost human appearance. It must have a modern design, with a smooth metallic skin and illuminated details that suggest advanced technology. Nova is in a contemplative pose, with a thoughtful and expressive look, in a futuristic setting with high-tech elements and a background that mixes city lights and circuits. The cover should convey a sense of mystery and introspection, reflecting Nova's journey of self-discovery.