4K Photo Upscale Prompt

Upscale this exact image @[Image 1] to 4K resolution. Preserve the original image completely - same face, same identity, same facial structure, same expression, same gaze direction, same head angle, same skin texture and wrinkles, same lighting, same shadows, same colours, same clothing, same background, same composition and framing. Change nothing. Only increase resolution and recover fine detail: sharpen existing skin pores, stubble and beard hairs, eyelashes, fabric weave and the edges already present in the image. No stylization, no beautification, no smoothing, no skin retouching, no wrinkle removal, no colour grading, no relighting, no added detail that is not already in the original, no change to face shape or proportions, no change to expression.