If you room remains as it is in the photos your sound stage could be absent due to the concurrent absence of any stuff (domestically approved or commercial) to break up bouncing high frequencies off the walls, ceilings etc. 1st reflections uncared for can destroy high quality imaging and finding the right toe in to reduce side wall reflections can be of great help, including crossing the axis of the speakers well in front of your head. You don't indicate where your listening position is. Do I assume you've got a triangulated set up? I'd suggest you do some down and dirty testing by doing three things just to find out where your problems might be: 1) hang some thick wool blankets on walls and windows and see what happens as you take them down one at a time, starting behind you, then behind the speakers, then on the side walls. 2) Play with toe in, A LOT. 3) Make sure you've go a relatively triangulated placement and that the speakers and seat are not located in nulls or nodes which could be screwing up the frequency response.
BTW, congradulations! Very NICE stuff. Now you've got a BMW, all you have to do is learn how to drive it!
Oh, for what its worth. My imaging/staging etc is very natural - what you get on the record is what you get in the room. Height wise it extends both above and below the tweeter appropriate to the music. Don't quit your equipment - you just have to set aside a couple of years to fine tune your set up! No kidding!
Oh, FWIW this subject has been discussed often. You might try the archives both here and on AudioAsylum.
