Honestly, it feels a little unfinished to me. If the upper "attic" didn't exist I think the lower closet would look fine, but that narrow gap between the two is bothering me. Seems to me that it would look more like a complete unit if you filled the space with crown moulding along the lines of the windows, although maybe not quite as elaborate. Or, as an alternative, I think beefing up the top and bottom trim on the "attic" would help make it feel a little more substantial and in line with the rest of the room.