Prompt: mecha, best quality, masterpiece, detailed background, digital painting, science fiction, battletech, walking, contrapposto, fog, mecha, robot, stomping through city, digitigrade legs, cannon, gun arm
Negative prompt: bad hands, text, missing fingers, extra digit, fewer digits, worst quality, low quality, signature, watermark, username, monochrome, (simple background:1.5), nude, bare breasts