The main hideout gets upgraded as you progress through the missions.
Say you were doing Sons of Samedi ---> Ronin ---> Brotherhood, it would upgrade to the dirty angel by the Crack mission, and it would upgrade to the proper angel by about the half way point through the Ronin.
Of course, CREATING that character is quite erm... impossible, I want to say. It's just that she seems a bit more detail than the actual character models (she almost looks like SR3). As far as I can remember, her hairstyle isn't in the game, I might have to double check.