Couldn't find a similar tutu skirt to the pic so u can check these chiffon pleated skirts out,
>> http://www.asos.com/au/Hearts-Bows/Hearts-Bows-Skater-Skirt/Prod/pgeproduct.aspx?iid=2579615&MID=35719&affid=2135&WT.tsrc=Affiliate&siteID=Hy3bqNL2jtQ-0RNKfI.HiT6SeZb_7d8kZg&xr=1&mk=VOID&r=3
>> http://www.yesstyle.com/en/tokyo-fashion-elastic-waist-pleated-skirt-dark-blue-one-size/info.html/pid.1030445365
>> http://www.yesstyle.com/en/stylementor-pleated-chiffon-skirt-overlaid-shorts-white-one-size/info.html/pid.1031099343
>> http://www.asos.com/au/Dahlia/Dahlia-Chiffon-Spot-Skater-Skirt/Prod/pgeproduct.aspx?iid=2218234&MID=35719&affid=2135&WT.tsrc=Affiliate&siteID=Hy3bqNL2jtQ-LHpN2Ju5Cyz1P71fCaXdWA&xr=1&mk=VOID&r=3
>> http://www.asos.com/au/ASOS/ASOS-Tutu-Skater-with-Bow-Detail/Prod/pgeproduct.aspx?iid=2491798&cid=2639&sh=0&pge=0&pgesize=200&sort=-1&clr=Black
n' this one ↓↓↓ they have 16 colours u can choose, hope they'd help :)

I think she's wearing a corset then a tutu skirt, so i found 2 similar corsets for u which is this one >> http://www.asos.com/au/Club-L/Club-L-Lace-Corset-Dress-With-Houndstooth-Skirt/Prod/pgeproduct.aspx?iid=2289399&SearchQuery=corset&Rf-200=4&sh=0&pge=0&pgesize=-1&sort=-1&clr=Black
n' this one ↓↓↓ hope they'd help :)

I think the skirt is a Forever 21 Blush Pink Peach Tulle Tutu Skirt but I can't find it on the website so I think they might've sold out. However, I've found a two sites that sell this skirt which is this >> http://www.friendlyfashion.my/clothes/womens/skirts/tulip-skirts/4521-forever-21-blush-pink-peach-tulle-tutu-skirt and the one below