Well here it is. Using some of the comments given from you guys I have come up with Version 2. I will be releasing it in three chunks, but you only need to download the one/ones you like.
This submission is the 1024x1024 version, so those of you who can't run the 2048x2048 version can use this one. You will be losing out one some of the detail but it should look pretty much the same.
In the download you get the options of what nail colour (default or black), shirt tone (dark or lighter), and whether or not the Black Mesa and Lambda logo appear on her shirt and on her arm thing.
Other than what I've already mentioned, I have also added:
-A zipper on her jacket
-Recoloured the grey things on her belt (shotgun shells?)
-Sharpened her hair and eyebrows for extra detail
-Gave her a smoother skin complexion
-Updated the bump and reflection maps
-Stuff I may be forgetting...?