Minami Kotori Theme is made for Xperia devices.
(Better compatibility with Lollipop 5.1 and above.)

Thanks to:
Wallpaper: http://aznha.deviantart.com/art/Kotori-Minami-101-Minimalism-583949139
Lockscreen: http://dmrn19.tumblr.com/post/121658387647/magiciaan-heres-kotori-from-mee
Icon: Kach Again
And of cource: the project developers!!!

You can find more LoveLive! XPERIA Themes on CoolAPK.
Address: http://www.coolapk.com/album/1580290

Xperia™ theme is a new way to make your Sony Xperia™ device truly personal.
Download gorgeous and high quality themes developed uniquely for your Xperia™ smartphone.
Theme changes almost all assets and is very easy to use.

Keyword: Minami Kotori 南ことり 南小鸟 南琴梨 ラブライブ！ LoveLive! μ's