Liara always looked amazing. Ashley in ME1 and 2 looked so bad. Like plastic surgury gone wrong. The guys werent something I looked at so I suppose they looked just fine (hard to screw that up I suppose).
Miranda, Jack, Samara, Liara, Katsumi, Kelly and Gabbie (or is it Y I dont remember) all looked great in ME2.
Finally in ME3 Ashley caught up, and in a very very good way.