The description will shortly be updated with a walkthrough so people can follow that until things such as visual or audio queues are implemented.
The walkthrough is pretty handy when there is no indication if I am doing something right or wrong.
As a side note, do not use the same texture for a button where player has to push block to press it, and for buttons on which he can just stand on. If not for walkthrough I would walk around the mansion with the block till the end.