What I wrote about this at the time:
Twelfth entry in #decemboobs, the annual, month-long daily drawing challenge for cartoonists to practice drawing breasts accurately and believably, because God knows we need it! Like I’ve said before, I struggle with smaller breasts because I’m not a very subtle artist and I need grand gestures to make things work, so this was a bit of a challenge. I guess the hair counts as a grand gesture. Once again, I did my best with the face, but it’s not the best work I’ll ever done. Faces will, of course, be the subject of another drawing challenge in January when I try to do a month of daily portraits.
With hindsight, the face doesn’t look all that bad to me. The reference image still exists. Model Alexis Sade has a Tumblr that has more of her model shots.