Excellent effort Marc, particularly pleasing to see the movement of Earth's shadow. When I attempted a similar montage in 2018, I was puzzled why the shadow was skewed at one end when I did a lighten blend of the entire sequence. Only after some mulling did I realise the shadow was also moving with respect to the stars. I can relate to your 'wasn't straight forward to put together' comment. I think I spent 6 months on my video -
https://vimeo.com/273224996