Make sure everything is secure and stable. Wouldn't want her to knock something over and get pinned. I can get away with stacking that chunk of wood on top of the caves only because it's mopani wood. It's the heaviest, densest wood known to man, and the snakes are too little to knock it over or push it. Be careful how you place heavy objects in her enclosure.(if you do at all)

I wouldn't stack it like that if the snakes were much bigger than they are. They're still very small and too weak to push or knock it over. Don't underestimate their strength.