Dynamic black and white manga-style concept art for "Beyond the Wall". Protagonist in mid-combat with a menacing mechanical creature on a vertical wall face. Character wielding a makeshift weapon, half-ancient rifle, half-futuristic energy weapon. Mechanical beast with multiple limbs, gears, and glowing sensors clinging to the wall, clearly non-human. Sideways perspective showing both characters on the vast vertical surface. Intricate details of the wall's texture mixing ancient stone and futuristic elements. Debris and energy discharges adding chaos to the scene. Strong contrast with deep blacks and bright whites. Focus on the unique vertical combat scenario and the clash between human and machine. Bold, confident strokes emphasizing intense action and tension. Show the scale difference between the human and the larger mechanical creature.