Your Feedback is really helpful, I changed the title of the D minor piece for now to 'D minor prelude', so thanks for that.
I had many problems with this newest upload and didn‘t know, weather I should publish it in this quality, since the resolution and so on are really poor.
In the end these variations, which I've written some of in ¾ and 4/4 were good composition exercises.
I've read somewhere, that there isn't a clear distinction between Passacaglias and Chaconnes but Chaconnes were supposedly more often in a major key.
So since the Passacaglia by Halvorsen has also a 4/4 time signature, I just let the title for what it is...
Greetings,
Wilhelm