These look really good, although I can see a slight dip in realism. A good thing to incorporate in CG scenes and backdrops is to maintain a good balance between what is obviously CG and what should portray a realistic object, ie the tv in the background. I get the feeling that it's kind of "dreamy", and while it looks nice and gives a euphoric appearance, if you saw a green-screen host bounced onto that, you'd probably be reminded of a quirky saturday night live reenactment. :P

Overall it looks very nice, and feel free to disregard what I said about the realism factor. Just keep in mind what the focus of the work you're doing is, and try to envision how it might be used and incorporated. Client work always comes with little surprises, especially when you plan for things to be used a certain way, and they end up ruining your work. LOL

Gj overall, very good work.