What an incredible piece :) !! Incredibly dark, the atmosphere is beautifully nailed down with that grayscale color palette and spooky music !
The sound effects are also awesome !
But oh boy that ending... terrifying ! That lamp looked liked "the thing" all along, with the spooky shadow on the wall ! And I had seen the same "thing" in that panel on the wall amongst other knots, little hints like that are wonderful !
In short great entry ! Keep it up mate !