This was really nice! :) I like the soft humor of the game, placing a survival horror into a "wip" escape game has a nice irony to it. But the game also achieve to keep a nice horror atmosphere at the same time. It's a great balance!
The puzzle are enjoyable too! Never too difficult, but with enough challenge to make them satisfying to solve. I only had one issue with the UX: I didn't get that there was a puzzle behind the card door. Several times I just closed the message, assuming I had something to find in the manor. It's only by accident that I eventually clicked on it and discovered that I could place cards. And another small detail: the heat beat sound heard when you are low on health and closing the menu is really loud. At some point I was hearing it constantly, and it became mostly obnoxious.
I still had a great time playing it! Congrats for making such a solid short game!