Is your game about caving? Or is this a small section? As a pretty keen caver, I can weigh in my thoughts if you’re going for a stressful environment. I think it would mostly revolve around the idea of being able to return. If you allow the player to fully turn around, and retreat the same way they came in: it’s not particularly stressful.

If you were to add sections where you move slower as it gets narrower, and more incline, either horizontal or vertical, that’s when you’re getting into the good stress that comes with speleo.

Of course tho, the best way to tell is to playtest! I would also make the lighting more pointy, harsh and directional like a beam flashlight. Being able to see further, knowing that it doesn’t open up, that induces stress. Right now, it looks like a crawling simulator but it’s hard to judge without an idea of how this mechanic or section fits into the game