retro sci-fi epic mecha "bai di" (white emperor), 15-meter tall humanoid battle mecha, silver-gray alloy armor, gold chinese beast-face and taotie patterns etched along armor edges, dark red five-pointed star insignia on left shoulder pauldron and left chest plate, twin shoulder energy cannons folded in standby mode with blue-white led cores, cockpit hatch split into upper and lower sections with overlapping thickened armor, full body shot, front three-quarter view, floating in deep space hangar, starfield background, imax 70mm film still, 35mm kodak 5219 film grain, technicolor color grading, asian red warm gold cool gray palette, desaturated cool gray base, vignette, anamorphic lens flare, high contrast lighting, high-precision alloy texture, practical live-action look, cinematic epic, no text