The Request.

The origin gods have different forms and they are in groups. Each group contains origin gods with similar forms. One group is full of shadows and dark entities of various shapes and sizes. Most don't even have definite forms. They are masses of energy that are constantly shifting in shape and size. 

Another group is full of giants made of wind and lightning. This group consists of entities that are mostly humanoid. Some groups contain humanoid books or statues made of layers of paper. Some are just towers of books and others are a single colossal book. 

There are several types of groups here that a knowledgeable person will identify as the domains of the previous grand gods. The only group absent is the group of the sun domain. After all, no grand god of the sun has passed the trial of heaven and gone on to become an Origin god.