Mirrorcle World, Days & GREEN Connection

[ALfromHELLSING]

I'm sorry if there already was a topic like this.
I've got my copies of Days/GREEN & GREEN/Days and after watching them (yep they are both absolutely fantastic) I've noticed a little connection between them.
In Mirrorcle World she's singin':
"Do you go with the flow or want to stop it?"
And in GREEN we can directly see it (I remember there was more detailed analysis of GREEN PV on the forum) her walking in one direction and crowd in against her. In GREEN you could say that she's singin' the same:
The brilliant trees standing in the cool air
Also in both Mirrorcle World & Days she's saved by her friends in the end.
Oh, and in GREEN & Mirrorcle World she's showing us that she's keep going forward by her own way.
I'd be happy if you'll share your thoughts about this question.
And if there some other connections that I didn't noticed... yet...