Oh my goodness if you heard me on Skype when I first saw the photo of this set on Flickr, I was so happy!!! It’s rare to see a beautiful fantasy set that would excite me that much! This full set (dress, bento gloves, staff and headpiece) are by Belle Epoque, you can get them in Pocket Gacha (there is option to buy a full set too!).
You can see a full set at Belle Epoque Flickr by clicking here.
Pose is by Stardust called Miu (I used mirrored version which is included).