MegaBadExample wrote...
The only thing really different is her hair, it's down. I don't get it.

You really can't see it? Well, for one, the hair is not only down, it's even shaped similarly to Miranda's, with one side of it falling over her face. Then, Ashley's breasts are much bigger than they used to be.
Finally, the suit. It does not really matter if it's a catsuit or jacket and boots. It's still a drastic change from what she previously wore and, using Ashley's own words, "it does wonders for her figure"
I've got no problem with Ashley fans wanting her hair down, my biggest concern is what jtav pointed out. That Bioware puts a human female in a skin tight suit and be done with it, who cares if it's Ashley or Miranda?