It's a miracle.

Nice work.
You could probably hit that lightly with some urethane rattle can (satin, not gloss or flat) for near perfection (but probably a poor match with the other side).
Or maybe rub a bit of mink oil and/or Kiwi black shoe polish on it (just as filler).
I'm amazed you actually were able to retrieve all those parts. The few times something exploded off my bike (or a car ran over my saddlebag lid) I was lucky to find a few shredded parts. And I had to play dodge-ball with freeway traffic running around looking for them.
Took me a while to find all the pieces because they were spread out over an area about 50 yards long.
Next I need to replace the texture and then flame the surface to put the shine back, that’s a little tricky.