Yes, that's true, the eyes aren't that slanted from this perspective.
But the real question here is how much is her head tilted upwards?
I tried to break it down a bit by comparing it to the twilight picture in this thread.
It seems like we've underestimated the slant on the bottom of the eye.
Also, the ratios for neck, legs, etc seem pretty accurate, well done
But the position of the eyes makes it look like she's looking up into the sky.
Although the mouth and nose should be moved upwards too, if that's what you want.
[BTW, you can click the image to zoom in, so you don't have to post it at double size.]
Another thing I realized is, shouldn't the jaw be more pointy and also stretched down a bit because her mouth is open?
Edit: Tried to fix that, resized the head a bit.
Of course, it depends on how far you want to go.
Looking at the comparison again, the eyes should be a lot further apart. Possible the head needs to be wider.