Treasure chest with 3 hidden compartments optimized for A3

Information

      I sat there in the evening and watched a few movies. 
Indiana Jones and some movie about safecracker. 
That's when I came up with the idea of building a treasure chest that requires a key and has hidden chambers that you can't see at first glance and that can only be opened with the key.  
What occurred to me or noticed afterwards is that I forgot the lock. 
At least for the main box. You can lift the lid as well without using the key. 🤷🏻‍♂️ 
Sorry guys, it was my first major project. 
However, the 2 compartments on the back are locked in such a way that you can't open them without the master key. 
I also exaggerated it a bit, I think. 
The 2nd key to open the lid is not just put into the lock but has to be twisted. 
That means the wire wrench goes into the lock to a third, then twist, then further in, then turn back and back in again until you can move the actual gear mechanism that opens the chest. (I copied that from the safecrackers / 2 to the left 3 to the right .....)
I worked the drawer in the lid in such a way that you can't see it, no matter if you do the engraving on the box or not. 
I wish you a lot of fun assembling it and look forward to your feedback and or suggestions for improvement.