Prompt: highly detailed, machined metal, mechanical,  skull,  high tech design, modular design. upgradable. serviceable, guyver inspired, , close up portrait photo by Annie Leibovitz, film, studio lighting, detailed skin, ultra realistic, bokeh, sharp features
Negative prompt: cartoon, 3d, disfigured, bad art, deformed, poorly drawn, extra limbs, close up, b&w, weird colors, blurry, watermark