I'll start with some of the things I liked. First off, the art, damn it's good. It seems to have this interesting blend between cute and dark, and I love it. Next up is the monster and how it reacts to the players behaviours, such as how the monster is attracted to your loud foot steps when running, the only issue I noticed with the monster is how it doesn't react to the light coming from the closets the player hides in, this however is an extremely minor thing.
The only thing I can think of that would be classified as a dislike is the current lack of story development, however given that it's a prototype I'm going to go ahead and guess that this won't be an issue at all later.
In regards to bugs I believe I may have stumbled upon one. I had died in the game, on my second attempt I acquired two of the key pieces and went to try the door again, however when I opened my inventory I found that the key had already been combined and was the exact one I need for the door. I also had a mysterious third key piece. I'm not sure if this was a bug or not, but it felt like one.
All in all this was a solid proof of concept, the foundations for a good story seem to be in place, the art is absolutely amazing and the monsters are creepy with just the right amount of threatening qualities. I'm curious to see where the project goes from here and will be keeping an eye out for more!
I hope you don't mind but I made a short let's play of my time with your game over on my channel (linked above).
Take care and best wishes,
Killjoy