It looks nice. I especially like the design concept for the 4 image. It creates suspense. And the 9th one with the TV in the living room, that's a nice little touch. I especially like the job of texturing that you did. Have you tried MR (mental ray), I am sure could really help bring the potential of your image out.
I also don't know if you have tried it, but my personal choice would be to use a little more decay with the lights or ceiling lights, and increase the shadows Dmap Filter Size to about 3, if you are using depth map shadows. This will help soften the shadows.