Hey man, two week and no updates? That's not like you.
Good to see some figure studies. I think you're kind of abstracting things too much, though.
Check your proportions of what your drawing vs what you see. Also, if you can, try to look
at the models from several different angles to get a sense of the forms.
The best is the female figure in the top left, good sense of planes and landmarks.
The guys in the bottom right look dis-proportional. The placement of the knees is probably too
high and the figure in the foreground definitely has some rather wide hips.
Try to visualize the bones and remember that the trochanter should be the widest point of the
hip (except for fat). Should be barely wider than the pelvic bone, and significantly narrower
than the shoulders on a man. Even on a female, the leg generally doesn't widen out much until
below the hip, beginning with the thigh
Looking forward to more, soon!