Well, already I'm seeing some improvement in your faces!
This was my favourate out of the batch- seems like you got the proportions spot on!
In other ones you're still making some tiny errors here and there, like here:
The main thing I can see is that the nose is both too high up and too big (or in the very least, wide) in comparison to the rest of the face.
Just be consious of that, you haven't done that in all the last pictures, so it shows you're breaking out of the habit.
Keep it up mate!
(hope you don't mind me posting your own pictures, by the way)