/ic/ - Artwork/Critique

I might be stubborn to the point of being dumb because I worked on this thing again, from scratch, but now I'm satisfied enough with it to move on. This time I did make progress faster after starting with three values only and erring on the dark side to add light on top, but still think I spent almost half the time on the face. Proportions are a bit wacky, should have done a sketch of facial features. Any advice is welcomed.