Nice one.
I've tried it with a 6d and 280mm (70-200 with 1.4 converter), but at that focal length it looks more like a big red star

What focal length did you use, I see 2000mm and 5x converter, so you where shooting at 10000mm ?
And whit 10000mm you also used 3x crop mode within magic lanteren, so you sort of end up with an image taken at 30000mm...