I'd suggest finding ways to separate the floor and wall in the bottom-right corner, if you're looking for ways to make the hall feel more like a hall. Right now, where the wall ends and floor begins is more or less ambiguous, but if you were to use the white baseboard in your reference pic as a sort of divider between floor and wall, it'd be more evident that the wall meets the floor at this point and by the looks of the perspective it doesn't quite meet that corner there, so that must be a hallway.
I'd do perspectivey fleshing out lines if it weren't 1 am and if photoshop felt like opening
Looking forward to your further progress, and I'm glad you've almost painted over it enough to get rid of that freaky ghost-lamp that was to the right of the actual lamp now.
Man I don't make sense.