You've nailed the spook factor and the sound design, now you just need to have actual gameplay. As it is, the demo is essentially a walking simulator, with the player walking aimlessly around the house while waiting for things to happen. Some things happen after investigating a certain noise or object, yes, but the majority of events seem to happen without any interaction from the player. The demo is definitely scary and sets up a good base for a full game, but the gameplay part needs some polish.