The battle speed was to slow. This doesn't feel as bad late game, but early on fights drag on for a long while.

I think characters were well developed. Only Amarant's story really felt lacking. Freya's was good, it was just to abrupt with Fratley showing up out of no where. An altered ending to her ark would have fixed it I think. Still, it was a lame end.

Necron could have been handled a lot better. They should have had some build up on what exactly the crystal was while you went through Terra. Maybe even have gotten your first glimpse (Maybe not physically) of Necron as Kuja fried that planet. Perhaps show him not only ultima-ing the surface, but destroying that plants crystal. Would have prevented Necron's appearance from being so Jarring.