I really like this. It's a got a really yummy feel to it--arne's palette does that

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Right now there's a major problem with contrast between the background and the sprites--the two kinda just blend together. So you might want to look into that.
Also, the background right now feels very messy or something. Maybe a more gradual movement from the brown to black?
And it just feels like you could go a bit further in terms of lighting. The drapes and the staircase railing are practically screaming yellow highlights in my opinion.
But I donno, this is cool so far. Good luck

!