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First thing you'll notice about the hippopotamus is its very bright light blue color. Thats the first indication of its connection to the gods, letting us know this stands for something larger than life. Another detail is that painted on the body are lotus flowers and more specifically they are opening. Lotus flowers opening represent birth, death, and rebirth. Due to it being a hippopotamus it was believed to be dangerous and destructive.
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The sculpture of the woman, she's young and beautiful. Her body proportions are perfect and that was probably the point to create an idea of the of a queen or god. We see that she has this blueish hair and blue dots on her dress that give that sense because as we know, at the time blue was connected/associated with the gods.