Enrichment is perhaps more for the keeper than the snake.
I added a back wall of foam faux rock ledges in the Trans-pecos tank. I also have a peculiar knotted and gnarled old stump in there. I like the way the display looks, and it's interesting to watch him slither around, but I have to pick him up, and place him on the top ledge for that. Otherwise, he stays on the ground.
He is my most beautiful animal, and also moves with the most hypnotic grace, but this tall narrow tank may not be suited to him.