i've been browsing this thread, along with most on here, for a while now without commenting. mainly because i see loads of progress and good advice here anyway... and there has been a huge amount of great progress here. From my point of view i'd suggest looking at mentler's construction and the way he builds figures around a 'flow'
All your progress is in danger of stalling a bit if you start to outline figures, i feel i want to see more overlaps on linework and more structure, be that with anatomical detail or shading that suggests depth, hatching and such. (think steak-tron stylee)
keep it up you make me want to draw