Really impressive work for just a week...the 3d cutscenes are astonishing, i don't understand how you managed to have the time to do that and produce 3 entire well-crafted levels, very good job! I see we both were inspired to make a retro horror game and i love it.
That being said, i don't really get how the stealth system works, first encounter with the enemy in the bathroom i kept the aggro until the end of the level and it kept chasing me the whole time. Also the stealth tutorial is introduced too late so when it show ups you have already all the enemies chasing you... For the 2nd encounter opening the gates trigger all the enemies at once, which i don't understand why since it makes the stealth mecanic useless for the entire level ? Especially when you have no way to escape or kill the enemies, once they start chasing you they will never stop and it was pretty immersion-breaking to reach the exit with a slow zombie chasing me forever ahah.
About the camera system, indeed it's a little bit jarring sometimes, i got lost a few times in small corners and the controls can be confusing too since the axises can change from one camera to another. Also the 2d cutscenes are well crafted but they are pretty long and boring, since we don't see at first how they are correlated to the game. Like others said i think written notes to find in the levels could have made a better job.