zombie, Boomer, Left 4 Dead 2, bloated body, greenish skin, bile-covered, torn clothes, ragged pants, drooling mouth, swollen tongue, hunched posture, grotesque appearance, action pose, exploding effect, city ruins background, dark atmosphere, eerie lighting, close-up, dynamic angle, decaying textures, slimy skin, post-apocalyptic setting, scattered debris, abandoned cars, overcast sky, dramatic shadows, horror theme, video game character, detailed gore, 3/4 view, high contrast lighting.