Armored mech revealing a weary man in a cave

A 16:9 aspect ratio cinematic concept art piece depicts a dark prehistoric cave. In the center, a majestic, dark gold mech (similar in appearance to Ultron from Avengers: Age of Ultron, but only about 200cm tall) partially removes its armor, revealing a weary, pale, muscular, bald man (played by Vin Diesel). Beside him sit two pale-faced pregnant women in simple modern combat gear, illuminated by a gradually fading, translucent blue runic energy shield spanning a wooden barricade. Outside the cave entrance, three futuristic mechs (a streamlined silver sci-fi mech, a 250cm tall green steel mantis, and a three-headed, six-armed silver sci-fi mech) step into the dim light. The artwork boasts ultra-fine textures, striking contrasts in warm and cool lighting, photorealistic style, and 8K resolution. --ar 16:9