Chay,

English is not my native language, so I'm not sure if Lucy's English pronunciation is good or not.
However, I can clearly see that she is a great vocalist.
And it's a very pop song.
For a vocal song, I think the instrumental solo interlude is a bit long.
But overall I think it's a great piece.
Enjoyed my listen a lot.

Best regards.

Shigeki Adachi