Those are excellent pics and it looks like the dust has sellted considerably.
I think you are getting better resolution with the wide field setup because I can see the sharp point of Syrtis Major and the bright spot above (Hellas). To the lower right I can also see a darkened area (Mare Acidalium). These are the easiest features to recognize on Mars other than the South Pole at the top.
If you include the times of the exposures in your posts it makes tham easier to analyze.
O they just keep getting weirder and weirderer. This doesn't relate to anything I'm familiar with so I'll just pass it off as space junk. There does seem to be an explosive effect here as the trails of the spinoffs don't quite line up.
It seems also to be a multiple event - well, at least two since some satellites travel in pairs or trios / quartets.
Trivia: Uranus was about 1 degree out of the frame.