Round circles around planets looks unnatural to me). Most trajectories are elliptical. And the must be disturbed by matter around it. At this stage gravitational field of the system is very complex. And I guess there must be more weird curves and lines. And by this complexity I guess in reality this action looks way more spectacular!))) Newer the less it is awesome work! I love it!) And I may be wrong ofc!
Did you know that the tail of a comet will always point away from the nearest sun? Even if the comet is moving away from the sun. It's caused by the solar winds pushing the material that forms the tail away from the sun faster than the comet is traveling. So technically, no matter which direction those comets were moving, the tails are pointed in the right direction.
Hmm, it is lacking a sense of grand scale and feels much smaller than the final System will be, but things like this it's hard to acheive said scale anyway Reealy nice, I like the smoothness of the molten planets and how they appear to be spinning rapidly