Although she overall looked consistent, and great, for all of S3 and 4. Her hair didn't look right in S1 and 2, and the earlier "catsuit" didn't look very nice. She looked a lot more stylish once they got her a new outfit and she had slightly lighter hair with a bit more style.
^ agree. First seasons looked like bad wig work, and catsuits obvious Seven imitation. Much better when settled into own style. Looks great in
Twilight, but also like
Carbon Creek (kinda cute in that period/vintage

). Also think she often looked great when just sitting in repose.