This is just a test scene

This is beautiful Tapio...

Looks cool in vr

Nice. Maybe a child (without too much detail) walking across slowly whilst dragging a ragdoll/teddy

How did you achieve that floor texture?

Haunting and beautiful. The surreal architecture is awesome! You could possibly incorporate some animation (something coming through the skylight, piano cover falling shut, ghosts in the seats, etc). It's also perfect as just a static scene. Nice work