Great work, really nice. The only suggestion I would have is maybe add more grunge and props. At the moment it looks like a new dungeon.
maybe add some dirt and various props
puddles of liquid,
more bones, cobwebs ,
blood stains on the walls.
spiders, mice, scraps of rags, scraps of wood.
maybe a bit more furniture.
anything else you can think of to grunge it up.
but great work, look forward to seeing more of your stuff.