There is like only one big photoshooting with these outfits and that was done by Sports Chosun. The pictures are very pretty and I also like the outfits alot❤ I got all these pics from image.newsbank.co.kr
Here are some of the photos above in high resolution from Sports Chosun Star Line. Click for full-size!
원더걸스 소핫 의상 사진 스포츠조선 스타라인
So the only other pic I have is this compilation of Inkigayo backstage pics.