highly detailed portrait of a moody cyberpunk Christopher Walken  in full tactical gear, by Dustin Nguyen, Akihiko Yoshida, Greg Tocchini, Greg Rutkowski, Cliff Chiang, 4k resolution, nier inspired, graffiti inspired, resident evil inspired, vibrant but dreary but upflifting silver, opal, gold, black and white color scheme!!! ((Graffiti tag brick wall background))