[MMD] [Hatsune Miku Append] My World [Original /オリジナル曲]

Animated video takes lots of time, should I create PV for each new song, or it's better to record more songs? Miku Dark model by ( http://innaaleksui.deviantart.com/ ) Thanx A. Nidhoggr for piano ( http://www.youtube.com/user/AntonNidhoggr )