It feels like she's not able to get the note out as much as she wants. After the 1:23 mark you can see that she's more in control. Sounds great.
The 1:52-1:57 is great. Nice line.
Really dig that lo-fi (talk box?) at the end.
It distorts a bit on my system tho. Some pops here and there.
That girl must like Evanescence :)
If this your first project together than it's even better, sounds tight. Her voices matches the music.