Why are you putting the staircase in the middle of the house? Why not between the living room and the office? Then you would have a nice open hallway and not this convoluted thing. Apart from the fact that a staircase doesn't necessarily have to be the most visually prominent thing in the house. But this way, it will be right in everyone's face.
Oh, and your living area-hallway will be quite dark. If you left out this unnecessary connecting door, it would look better. Especially since you will always have the door open anyway.