As mentioned by the other users, this mission is basically ANIR 1 with improved gameplay, puzzles, and overall a more spacious layout compared to the first mission.

The atmosphere is thick with dread no doubt, but I absolutely love the start of the mission that takes place in a neutral area where you can take in the sights and not worry about getting your head caved in by a guard. There's always that calm before the storm feeling as you take your first steps into a hostile zone that's done fantastically here.

The whole supernatural element that occurred at the end of the previous mission is further explored here (and taken to the next level in ANIR 3, Ink & Dust) and it works great. Overall I found this mission fairly challenging, although not as bad as the previous.