The different features of the avatars didn't immediately surprise Noah. His focus was on the process that had given birth to them. He didn't miss how Heaven and Earth had used the chaotic laws that had survived the orange city to create those giant puppets, which clearly was an important aspect of the whole process.
Heaven and Earth didn't create the avatars out of random energy. Instead, they had built precise puppets using the surviving chaotic laws as their foundation. That had ensured a faint resistance against the old rulers' power since that energy had already proven itself capable of enduring the array of lightning bolts.