Marina is not human, which is obvious looking at her, but when one looks inside, it becomes even more obvious. Like Rai, her human DNA had changed; she is now considered only 87.3% human.
Unlike Rai, this change is now fueled by mutation and thus is much stabler, but it also means it couldn't be hidden, like him. There is also a difference of change in them; Rai is 98% human compared to Marina, and the changes inside him, seem so small, which is why I wouldn't be able to revert her back to her original self.
Or hide the sign of change, as I did with Rai.
The changes are permanent.
Her core is also now different; the old core had been destroyed, and so is her inheritance; she now has a bloodline core, a fused bloodline. One part of it is scaled emerald in color, while the other is in golden amber with lines of purple over it, and both of these bloodlines are powerful.