>>63
There is no smoked glass anywhere. The only things visible are what were mentioned in >>49. There is nothing to suggest that the room on the other side of the hole will be protected from vaporisation. All you can make out from here is that the flooring is made of small square white tiles.
>>64
Behind the painting is a hidden compartment, containing a piece of paper on which is written:
Samson 512
You can hear footsteps outside.