A design concept diagram my "BRO-DEE" showing the process of building with each step represented by different a colossal undestructable mecha in hyper-intricate steampunk technology. Its massive frame, adorned with a labyrinth of copper, brass, and steel, pulsates with life, showcasing a symphony of hissing pipes, whirring gears, and glowing pistons. sketches and digital construction models of a colossal undestructable mecha structures and dimensions. The left side features two overlapping images that depict an exterior view of a colossal undestructable mecha towers at various heights from multiple angles, including front, back, right, and top views. A section below these images shows close-ups or details for individual elements in white background.