There are pictures available.

I’m certainly not an expert but he’s holding his stomach in one hand, giving himself a good tug with the other and looks somewhere between scared and confused. The leopard on the left is all smiles.

There’s another dude standing a few figures away with his back turned to old tug-a-lug. He’s holding something and looks kind of ashamed though I could be reading that into the image since it’s not really well carved… Tug-a-lug is the best carved of all and must be the centrepiece of the story.

If this is another great flood narrative, I sure prefer the Hebrew great flood story.