One of the side characters to "ECS - Betrayal", Cosette is actually one of my oldest models. So old I don't even remember what the original version looks like, or have images of her. If you've got one of those model packs from the MG days, the original is in there in one of them...best I can do for ya'.
As for the character of Cosette, she's a manipulative, self-entitled, spoiled bitch. Being a high profile lawyer, she's used to people bending to her iron will, both in AND outside of the courtroom. As you'd no doubt guess, this pertains to imposing her will on others...including friends. This is no doubt the reason why her closest friend Christine differs to Cosette more times than not.
There's a lot more to Cosette's tale as the story unfolds. Is it good? Is it bad? Only time will tell...