Though I encountered a bug that made it so I had to restart at the end, the game was fantastic. And even that bug was my own fault for missing the obvious directions. Thanks for sharing this with us!
I didn't use the Small Key on the cupboard when the mannequins were leading there, which seems to have locked out progression. The Blue Key could no longer be used on its door, and I missed the whole stark white section. I'll link the video below if you'd care to track it down. It's somewhere near the 30 minute mark.