Hey Herb, great work. If your looking for opinions, I agree with whats posted above:
1) Vocals maybe a smidgen too loud (or maybe partly the reverb choice?)
2) The singer is real good, but she doesn't sound completely comfortable with the lines. A little more practice with it and I think she can make it even better
3) It is screaming for vocal harmonies.
The arrangement and mix sound great, just the minor vocal level and/or reverb choice.
Great job, please post a final version so we can all compare