Decent execution with a very flawed ending - please next time don't end with the game closing, just an advice from a game developer ;)
I was very intrigued with the story, as well as simple, somber atmosphere with good sound design. I think adding the menu music, some melody would improve the experience as well as adding some background ambience, besides rain and thunder. The story was really unique, reminded me of Lovecraftian lore and that ending would have been great only if the game didn't close on me. Overall - great job!
best of luck with the future developments.