well first of all, I'm originally from Wisconsin, so since you have that Vikings cup, I must instinctively hate you. I'm just kidding
Everything is looking real good, however I have a couple suggestions, and maybe you've explored these already.
Can you space out your rear surrounds anymore? They don't seem uniform in where they are with the back couch. It seems the one in the window sill is more forward than the one on the stand. Typically, you want your surrounds to be kind of behind you, and a little more over your head. In my situation, I can't figure out how to get my surrounds farther away from me, so I raised them as high as I could, and I have them firing directly at each other. Look at my gallery to see what I mean.
Does that stand allow you to raise or lower the tv? If so, you could probably lower the tv a little. If not, you could get something to put under the center speaker to isolate it from the stands. Something like mopads, or just some dense foam rubber you come up with yourself.
Did you mess with the subwoofer placement at all? I would say that location would be great for a secondary sub, but ideally you would want your sub closer to your mains. Again I'm a hypocrite for saying that, but I can't make a sub work in my front soundstage...not yet at least. I have plans.
I'll let you respond to those questions. I really don't have anything else to ask about...nice tv and great speakers!!!