"Layers mostly, from more watery to thicker. It's just white fine refined sugar and water.
3 of the figurines are sugar, corn syrup, and water boiled a la lollipops, the ones falling apart.
Creators project covered the technical pretty well, but let me know if you have more questions! I'm excited you get a chance to see it."
(Eric Hagan, Director of Sugar, in a text message response to a question about how Kara Walker's sugar sculptures were made)