Great rendering. I love all the details you put in it.
IMO with all that realism something important is missing........Dust.
Where is the dust in this old room. Even if someone had cleaned it.
No dust in air. No dust on the floor with also with that crack paint ceiling there no debris . No dust on all those books, the table, the piano etc.
Those books are too perfect.
The wallpaper seems too heavy for staying suppend like that. And for detaching himself from the wall there must be humidity spots.
It's just for criticic in that flow of compliments : )