Looks nice so far, but the lighting is confusing with that perspective. From the floor tiles, it looks like the light should be coming from the top or top left, but the left wall tiles make it look like it's coming from the right. People are used to seeing light from the top left, and it's good to break out of that but it needs to be very explicit to look "right."

I love the shape of the walls in the background, they're barely recognizable as 32x32 tiles and that's always a good thing.