The short, creepy location descriptions were my highlight of the game, I love light horror like this. Not too scary for kids, I'd say.
There are a couple of situations where there are multiple objects with the same noun. The default message of having to choose one is ok, but some games suggest the player work around the annoying extra step by designating use of the verb as the noun instead (e.g. "burned" or "torn" / "red" vs "blue" - "get red" will let you collect the orb). You can tip off the player about this with the tutorial. I'm not sure there was a final win scenario (spoilers: I placed the two orbs and entered the portal, but then I could just go back).
Sounds like you may add more later - I'd be interested in playing again after more updates.