I think this one is an Utau member who goes by the name of Xia Yu Yao. The design of the character is lovely and you can expect she will be featured in more skins from now on. But in the meantime, here’s a Google Chrome theme of her for you.
File Size: 1.9 MB
Color Theme: Turquoise
Note: An explanation about how to use this file can be observed at the Chrome page. Happy downloading!