There were a few publicity shots of Kelly Hu from the pilot that dealt with Julia examining bodies and such, but I only recall there being the one character shot of her that's published in KLS' latest DS book. It's too bad that she doesn't have copies of it to offer fans - but then I suppose there wouldn't be many asking for one considering that so few people have actually seen the pilot.
As for how much she was in the pilot, I honestly don't recall because it's been years since I've seen it (though I don't seem to recall there being much), but there was more of Julia in the script. But then, there's pretty much more of everyone in the script than what appears in the pilot as it ended up. (And, gee, where have we recently experienced something like that?
But then it's nearly always the nature of the business that more is written than ends up being used...)
As for the ending, well, what can you say? But some judicious editing could have easily made it quite effective. Though quite interestingly the way the ending plays in the pilot is different from the way the script intended it to play. A touch that in all probability can be traced directly back to P.J. Hogan directing and deciding to change things.