It says "exit" in a lot of places where you really aren't exiting. Maybe substitute that for an arrow?
It's difficult to know what you can interact with. Too many things blend in. But otherwise, it's very nice. Great art :)
Also---There's a glitch. When I got the first piece of paper copied and was trading with the salesman, the copy dissapeared, but I didn't get anything in return for it. The dialogue with the salesman continues as if I am about to trade him the paper, with nothing happening each time.