GLaDOS core from Portal 2 in a dark, atmospheric setting HD Wallpaper

A dark, metallic robotic core with exposed wires and a glowing red heart-like component hangs from dark, vine-like structures. The background is a hazy, blue-toned expanse with faint digital grid patterns. Text is visible in the lower right, reading "It has been a Looonnnngggg test..." and "If you MONSTER".