Some of this information was found in a Ar Tonelico II walkthrough.
Credit goes to: Eleinia
Default Costume: Already Obtained at Beginning
Cloche's original Holy Maiden costume. She wears this costume most of the time (except during battle), though she also wears it in Cosmosphere once in a while. The costume is dark blue and white in colour with a pair of medium-sized wing below her shoulders, a sun-shaped circlet and a pair of white long boots with some gold details.
Well what can I say, Cloche was the most difficult of all. There are about 5 to 6 design changes with a lot of debate. I remember I was very excited upon receiving this from the artist.
Costume Obtained in Cosmosphere Level 2
She wears this as soon as you enters Cloche Cosmosphere Level 2. She wears a light purple Yukata with a long dark purple skirt. Her hair is tied in a ponytail using a medium-sized dark purple ribbon and she wears a Katana by her side with black high-heeled boots completing the costume.
Costume Obtained in Cosmosphere Level 3-4
She acts as the school body president in this Cosmosphere Level. She wears a pair of spectacles and tie her hair into two separated braids. Her clothing is a necktie, a white inside shirt, a navy blue blazer, a grey medium-sized pleated skirt, a pair of navy blue socks and a pair of black school shoes.
Costume Obtained in Cosmosphere Level 5
Cloche wears a light-colored Yukata without the skirts in this Cosmosphere. She tie her hair into two pigtails with a magenta hair band. She wear dark purple slippers and hold a fan. This outfit is pretty simple and lightly colored that her other costumes.
Costume Obtained in Cosmosphere Level 6
This time it is really futuristic or just naughty depending on how old you are. Cloche's hair is held in a ponytail by multiple magenta hair bands and her eyes are covered by a metal mask that's a part of her headdress. Her costume is reminiscent of black bondage gear, complete with chains, with magenta accents.
Costume Obtained in Cosmosphere Level 6-R
Cloche tie her hair into two curly pigtails using sun-shaped circlet ornament. She wears a no-hand shirt which is attached to the skirt, making it looks like most of super hero's wearing. The shirt has a white stripes at the front, separating the dark blue with golden patterns apart. Her skirt is dark blue with some white details at the end. She wears something at her hand ( probably it works like bangle with different shape ) which is from her wrist until a little before the elbow. There is a small sun-shaped brooch above her chest and two long green ribbons with two small stripes at the end is attached to it. Her shoes are normal-type white shoes with medium-sized heels. A pair of dark blue socks with golden stripes comes with her shoes.
Costume Obtained in Cosmosphere Level 7
Costume Obtained in Cosmosphere Level 8
She let her hair down and wears a pink pajamas with short-length arms. A white-pink ribbon formed and X above her chest and formed a line under her chest. She wears a pair of knee-length pants and a pair of Gergo shoes.
Cloche seems serious, but is a big fan of cute stuff. In private, she is quite the girly girl. Pajamas are the symbol of private life. And that's why is shows Cloche's true taste. She might be better in a white gown, stylewise, but for the reason above, it's PJs.
Costume Obtained in Cosmosphere Level 9
Costume Obtained in Frelia's Cosmosphere Level 2