Neither the two hands of the empires nor the other angels touched the food. However, they did seem to be attracted to the scents. Since this was the case, Walker's group did not eat either, however, it was clear that they all were ready to eat if it was a possibility. This was mostly due to the journey taking a toll on them but also because if they did not it would be a waste of food.
There seemed to be other interests that the hand of the Fel and Rize kingdoms had. They had seen Onyx's shape before he entered the embassy but were clearly caught up in the fact that he had changed his shape and become smaller. He was still larger than he liked to be though since he was curled up next to Walker instead of on his shoulders.