Although I haven't updated this thread for some time, I'm still making good progress on this game.
Here are the latest versions of the screenshots from the original posting.


This is very probably how they will appear in the game. I've upped the resolution of the player character (Tracey) to match the background resolution, and as you can see from the first pic, the other characters in the game are now fully-fledged. (The other two characters no longer in the image are in the back office having a conference.)
There's lots more still to do, so I hereby cautiously announce the game's release in autumn/winter 2011.