Weina has a lovely voice, and her personality shines through here. As a native speaker (and user of the software) I'd prefer the accent be gone, but it does no damage to the song.
I also thought that the first verse felt like it was pitched high for her, but I suspect part of that is that I'm just not that used to hearing someone sing that high.
Another factor is when SynthesizerV "humanizes" pitches, it pulls the vocal slightly out of tune. It's a delicate balance - too perfect is robotic, while too imperfect sounds off because we're so used to hearing everything auto-tuned to perfection.
Adding Natalie helps balance out Weina's high pitch.
Sounds good!