I enjoyed the creepy atmosphere and music! Also, the way you showed how the elevator moved was fascinating with the images on the walls.
I am a bit confused about what I was supposed to be doing, and sadly the game kept crashing when the outside would turn red even when I restarted at least 5 times. :(
I think the crashing may be from it being a webGL build as when I tried to upload a webGL build mine would crash when I tried to do a scene transition; however, I don't have this problem when I make it a downloadable game. I also haven't done any research about webGL builds so take that with a grain of salt.