16岁生日快乐，我的公主殿下。
初音未来16周年快乐~
二编：根据画师群群友的意见，把这张图优化了一下。
这下人物和前后景终于分开了。

Happy 16th birthday, my princess.
Happy 16th Anniversary, Hatsune Miku~
Edit: At the advice of my artist friends, I optimized the picture.
Now the front and back scenery is finally separated from the person.