Nice, classic sorta escape game.
The QWE control was a little awkward as I'm used to just clicking options but I got used to it. Maybe hide the "..." options or replace them with "Do Nothing" to be clear they aren't options.
Same thing with the camera. I thought the camera tracking was broken until I did a full 360 and realized you didn't need to turn much. If possible, lock the camera to the important angles so the player doesn't get lost.
All the puzzles made since and the chemical pouring was fun. I was glad to see it didn't require exact measurements. This let me finish the puzzle when I knew the solution even though I accidentally went a little over.
Good job!