You def have something here! I really appreciate the amount of work that has already been invested. It makes for an interesting demo with minor refinement needed. What I would suggest is if an object can be interacted with, but isn't needed to progress the story, at least make it so you can carry it with you. Instead of a pointless 'pick up object, look at it, then put it back down' scenario with every thing you interact with. Lastly, make sure the audio assets are blended seamlessly and smoothly. I'm looking forward for when this is in Early Access!
Great work!