As I was sketching this one, I put a rug in the foreground. That didn't look interesting, so I drew a few snakes. Adding those slithery reptiles was only marginally better.
I remember hearing that in the snake pit scene from The Raiders of the Lost Ark, originally, there were not enough snakes on the floor of the pit to make the visuals work. Lesson learned… I added more snakes too. It may still need a couple more!