Exactly how did you paint the water she's in?

"That is a tough question. We initially came up with the idea of creating this giant stencil that would lay down on the surface of the water then sink to the bottom, allowing the paint to float up and out, coming off the stencil. For the first take, that worked. But for the second take, we realized, it would involve another 20 minutes of time to re-create the stencil again. It was essentially this giant wire, metal-frame apparatus that we covered in absorbent material, soaked in paint. It took four people to carry it. We had to dip it around Ariana's body, hold it for a moment, then let it submerge so the paint would create those lines. So, me, Sheila, and my three assistants ended up running laps around the pool squirting paint onto the water instead."