Blonde Girl Portrait - study

Speedpaint study for speedpaintstudies.deviantart.c…
2hours. No tracing, no colour picking from original picture.
Original ref: fav.me/d4o5hvb by

The hardest thing was the placement of facial features, as always. I barely had time for anything else and I'm not happy with the result. Aaaargh! Faces are so hard!
The topic is perfect, I'll surely try at least one more if I''' have time.

As always comments and critiques are welcome!
How do you deal with placing eyes, noses and mouths in correct positions?

Edit: I notoced a strange thing. After downloading the reference image is much more saturated (about the saturation of my study!), that's why there is such a gap between my study and the photo ref.