This towering, monstrous creature is crafted from broken stones and bits of rubble as it moves through the destruction left behind in a once bustling metropolis. Standing at an impressive size, it can easily hurl its weight against any structure or vehicle that stands in its way. It's searching the area intently, pausing in moments to take a breath of the air and press its ear to the ground. It's a daunting sight that could strike terror in the hearts of any onlooker.
To bring this picture to life, I would suggest coloring the beast in darker hues of grey and blue to make it appear more menacing and mysterious. The backdrop could be filled in with lighter shades of grey and yellows to give a sense of warmth and hope even in the midst of destruction. To further emphasize its size, add browns and beiges to the tiny buildings, cars, and debris it crushes in its path. To complete the image, emphasize the beast's red and yellow eyes with a vibrant hue of orange or yellow.