Pretty good. I did feel that once you were spotted you were pretty much boned. Your sprint speed and meter is a bit too weak to give the player a fighting chance, which makes deaths feel a bit cheap. The cross worked once to ward it off but it zeroed back in on me pretty fast after that.
I do think you did a great job on the layout of the cave, it is extremely easy to get lost even after studying the map. It might even be be a little too realistic in this regard, I think a few notable objects placed in strategic locations could have helped, even if it was just some unique cave features to make rooms seem more memorable. I also liked how you could place down lanterns to mark where you had been.
All in all, good job on the game.