Great job incorporating the theme in the mechanics. Uncovering secrets, while having to remain secret yourself... It's like this theme was made for a spy game, and not the other way around.
Nice use of audio cues and ambient sounds, too. The small 3D room was immersive. but I think that resulted in a less than ideal control scheme for the kind of actions required of the player. An understandable trade-off. All of the models looked good, too.
Great work to the team!