Hello Dionysius, thank you for your treatment of this beautiful, heart-breaking song.
For the lyric:
"Alles war schon immer da
Nur eingesperrt im Puppenspiel"
you have translated "Nur" as "Now" it seems. I think "Nur" in this instance is more like "only" or "just" or "merely". Its like he is saying the butteryfly's beauty was present all along, but just locked up in puppetry so nobody could appreciate it.
What do you think?
If you share my translations elsewhere, please link to this page/my profile and give me credit for my work. Corrections are always welcome.
Evander