I like the source selection, but it feels that the video overall is missing energy. The way you added your text and creative ideas doesn't fit in well and needs to look more natural. Your scenes do not have enough energy into them either which is another problem. I see you wanted to create something really fun and random, but try editing towards some type of story into it. I don't mean selecting scenes to slow the speed down to create a story, but there are a variety of ways to create a story out of this you just need to involve an incredible amount of thinking, time, and effort into this.
For this try being more creative with this and make your creativeness look really natural. Like for instance try referencing something like a set of mirrors, a set of pictures, a website design, and etc. and take those looks and style them into your video.
Here is this for example (Not the original editor's channel, but it's the only upload that's on youtube):
https://www.youtube.com/watch?v=u9rBEO1lLIA
Original video:
http://www.nicovideo.jp/watch/sm27681246
My advice is to rework on this more and try to find something that will inspire you and that "something" can be anything, life related for instance. Also try to spend more time on this and try new things. Good luck!
